Thank you, Lean, and good morning, everyone. Thanks for joining us for our fourth quarter and full year 2017 earnings call. This morning we issued an earnings release, which is available on our website at investors.sabre.com. The slide presentation, which accompanies today's prepared remarks, is also available during this call on the Sabre IR webpage. A replay of today's call, along with the slide presentation, will be available on our website beginning this afternoon. Throughout today's call, we will be presenting certain non-GAAP financial measures, which have been adjusted to exclude certain items. All references during today's call to EBITDA, operating income, EPS, and net income have been adjusted for these items. The most directly comparable GAAP measures and reconciliations for non-GAAP measures are available in the earnings release and other documents posted on our website at investors.sabre.com. We'd like to advise you that our comments contain certain forward-looking statements. These statements include among others disclosures of our guidance, including revenue, EBITDA, operating income, net income, EPS, cash flow, and CapEx, our expected segment results, the effects of changes in accounting standards and U.S. tax reform, and the effects from new or renewed agreements, products and implementations, our expectations of industry trends, and various other forward-looking statements regarding our business. These statements involve risks and uncertainties that may cause actual results to differ materially from the statements made on today's call. Information concerning the risks and uncertainties that could affect our financial results is contained in our SEC filings, including our 2016 Form 10-K and our third quarter 2017 Form 10-Q. Participating with me on today's call are Sean Menke, our President and Chief Executive Officer; Rick Simonson, Executive Vice President and Chief Financial Officer; and Chris Nester, our Treasurer and Senior Vice President of Finance. Sean will start us off and provide a review of our strategic and commercial performance and outlook. Rick will offer additional perspective on our financial results and forward outlook and following that Chris will walk you through some of the reporting changes we’ll be making in 2018, update you on our estimate of the impact of U.S. tax reform and ASC 606, a new Accounting Standard on revenue recognition as well as provide additional detail on the forward outlook in light of these items. We will then open the call to your questions. We have a lot to cover today so we anticipate the call going a bit longer than normal. With that, I'll turn the call over to Sean.