Thank you. Good morning, everyone. And welcome to the American Airlines Group's fourth quarter 2018 earnings conference call. With us in the room this morning is Doug Parker, our Chairman and CEO; Robert Isom, President; and Derek Kerr, our Chief Finance Officer. Also in the room for our Q&A session are several of our senior exes, including Maya Leibman, our Chief Information Officer; Steve Johnson, our EVP of Corporate Affairs and Don Casey, our Senior Vice President of Revenue Management. Like we normally do, Doug will start the call with an overview of our financial results. Derek will then walk us through the details on the fourth quarter and provide some additional information on our 2019 guidance. Robert will then follow with commentary on the operational performance and revenue environment. And then, after we hear from those comments, we'll open the call for analysts' questions, and lastly questions from the media. To get in as many questions as possible, please limit yourself to one question and a follow-up. Before we begin, we must state that today's call does contain forward-looking statements, including statements concerning future revenues and costs, forecast or capacity, traffic, load factor, fleet plans and fuel prices. These statements represent our predictions and expectations as to future events, but numerous risks and uncertainties that could cause actual results to differ from those projected. Information about some of these risks and uncertainties can be found in our earnings press release issued this morning in our Form 10-Q for the quarter ended September 30, 2018. In addition, we will be discussing certain non-GAAP financial measures this morning, such as pre-tax profit and CASM, excluding unusual items. A reconciliation of those numbers to the GAAP financial measures is included in the earnings release and that can also be found on the Investor Relations section of our website. A webcast of this call will be archived on the Web site, and the information that we're giving you on the call is as of today's date and we undertake no obligation to update the information subsequently. So thanks again for joining us. At this point, I would like to the turn the call over to our Chairman and CEO, Doug Parker.