Select an airline such as American, Delta, Southwest, Emirate, etc., and compose a scholarly case study paper that provides details on one of the information systems that has been implemented by the company in the area of human resources, sales and marketing, customer service, reservations, maintenance, or operations. Be sure to select an information system that has resulted in the airline gaining a competitive advantage over its competitors. Touch on how the utilization of the information system has assisted the airline's management or employees in making better decisions, improving the business processes, operating more efficiently, or attracting or retaining customers.