Thanks Jeff. I’d like to take this opportunity to thank our customers for flying United. Every day we are working to improve our reliability, our product and our offering of destinations and schedule you desire. In the first quarter, our unit revenue was up 0.4%, higher than the midpoint of our initial guidance. Our domestic unit revenue was up 1.6% and our international unit revenue was down 0.5%. Our domestic unit revenue performance was largely driven by lower capacity in the quarter that would than anticipated results from our revenue initiatives and the timing of Easter. A contributor to our strong domestic performance was the re-banking of our schedules in Denver and Houston. We have seen both yields and volume of connecting traffic increase year-over-year in these hubs. We rebased Chicago in March and are pleased with the initial results. Our domestic results were also positively impacted by the timing of Easter this year, as Easter travel began in the first quarter. This provided a tailwind of 0.5 points to the consolidated network. This Easter travel share will reduce PRASM by a similar magnitude in the second quarter. Transatlantic unit revenue increased 6.9% in the quarter, mostly driven by our seasonal shaping initiative which reduced this flying during the lower demand in winter period while increasing flying during the higher demand summer period. This initiative helps to offset the pressure from a strengthening dollar, which generated a headwind of 1.4 points of PRASM in the Atlantic entities. Pacific unit revenue was down 7.4% primarily due to four factors; first, the weakening currencies in the Pacific contributed approximately 2 points of unit revenue decline; second, we grew our Pacific stage length as we revamped Australia flying and transitioned our unprofitable shorter haul intra-Asia flying to our joint venture partner ANA. This change in our Pacific flying although earnings accretive drove approximately 2.5 points of unit revenue headwind; third, declining fuel service charges particularly in Japan drove more than 2 points of Pacific PRASM pressure in the quarter. Finally, some [credited] capacity additions in China continued in the first quarter and accounted for 1.5 points of unit revenue degradation. Turning to corporate revenue, in the first quarter, our corporate portfolio decreased by approximately 1% year-over-year, as our oil related corporate customers began to reduce their flying. On a year-over-year basis, the revenue from our corporate energy accounts declined approximately 20%. Excluding energy, the remaining corporate revenue portfolio increased 1% year-over-year with strength coming primarily from the healthcare sector. Ancillary revenue continued to grow in the first quarter, averaging more than $23 per passenger an 8.6% increase year-over-year. Economy plus pricing optimization continues to be a leading contributor to our ancillary revenue performance. Quite simply, our customers value and are willing to pay for the extra space and comfort of our economy plus seats. In the first quarter, our economy plus revenue for available economy plus seat was up 16% compared to the first quarter of last year. In the second quarter we expect our unit revenue to decline 4% to 6% with capacity up 2.25% to 3.25%. Based on our current projections, we believe that the second quarter will produce a lowest unit revenue performance of the year. For the second quarter, we anticipate domestic PRASM will be down approximately 3% and international down approximately 7%. There are three primary contributors to the unit revenue weakness that together will pressure our second quarter PRASM performance by 5.5 points; first, the earnings accretive improvements we have made to the United’s network [indiscernible] that are PRASM dilutive contribute 1 point of PRASM pressure; second, there are external factors driving 3.5 points of pressure which consist primarily of the strong U.S. dollar, lower oil prices and 0.5 point headwind from the timing of Easter; third, competitive capacity and pricing pressures are generating approximately 1 point of unit revenue decline. I will walk you through each of these in greater detail and describe the actions we are taking. First we've made a number of network and fleet improvements including several that reduce cost and expand margins but aren't a drag on unit revenue. These improvements include the installation of slimline seats, the extension of our stage lengths and the consolidation of [slimline] seats, which in total we expect to drive 1 point of year revenue decline. As an example we've installed slimline seats on 386 aircrafts to date and expect to have 485 completed by year end. These slimline seats improve fuel efficiency, generate very low marginal non-fuel chasm and are highly accretive to earnings. However the additional seats create a headwind to PRASM, as they generate lower than average yields. We remain committed to these network and fleet modifications despite the unit revenue pressure they provide, as they generate significant cost benefits, are accretive to our margins and will improve our operational reliability. Second, external factors are also contributing to our expected second quarter revenue performance; we expect that the strong U.S. dollar will contribute one in a quarter point of consolidated unit revenue decline. We anticipate that as we move into the summer U.S. point of sale will increase and offset some of this projected weakness. This will be more pronounced on the Atlantic entity as we expect American consumers will take advantage of the strong dollar and take European vacations. Where we don't anticipate a point of sale shift we will benefit from capacity adjustments we are making through our network. In the second quarter we will benefit from an 11% reduction in Japan capacity and a 13% reduction in our Canadian capacity to offset the weakening currencies in those countries. We will continue to monitor ongoing capacity reductions into the winter months to address continued foreign exchange pressure. Our current expectation is to reduce Japan capacity in the fourth quarter by 7% year-over-year. Declining oil prices are also affecting unit revenue. As I mentioned earlier many international surcharges throughout the world but primarily in the Pacific have decreased as result of lower oil prices. In the second quarter we expect the average surcharge to decline compared to the first quarter and contribute approximately 1 point of year-over-year PRASM pressure to the consolidated network. Where demand permits we have increased base fares to offset a portion of this headwind. Additionally, the Japan capacity reduction I mentioned earlier will help offset the surcharge reduction. We don’t anticipate these actions can completely close the gap but they should mitigate some of the effect. Lower oil prices are also causing energy related corporate customers to scale back their travel budgets. We expect this to reduce consolidated unit revenue by approximately three-quarters of a point in the second quarter. We are working closely with our corporate customers to address their travel needs and we have begun taking appropriate capacity reductions in several energy centric markets to address their declining performance. Coming into the summer we plan to reduce capacity in these markets by 6 percentage points compared to our original expectation. We will continue to closely evaluate the performance in these markets and are prepared to make additional changes if necessary. The third contribute to our unit revenue decline is the competitive capacity and pricing pressure we are confronting. With respect to competitive capacity in the second quarter our routes will face 6% competitive seat growth, this growth will come largely in China, the transatlantic market and Hawaii. We anticipate this will provide a 1 point headwind to PRASM. We expect that this competitive pressure combined with the external factors and margin accretive actions we are taking will put a toll of 5.5 points of pressure by consolidated unit revenue in the second quarter. With respect to capacity, today we lowered our full year guidance by half a point to 1% to 2% year-over-year. With this level of capacity we can accomplish our goals of durable, margin accretive growth while also addressing the pressure points that we just discussed. In conclusion we are pleased with the progress we have made to expand our revenue premium over the last few quarters. The current environment has brought new challenges and we will continue to manage our network as we have for several years with discipline. With that I'll turn the call over to Greg.