Tickets purchased from major airlines and some global hotel chains have unique identifying numbers that can be used by travel management companies and large corporations with in-house travel management departments to automatically reconcile employee spending with accounting systems.
Corporate travel business expenses are believed to exceed $500 billion annually, and roughly half that amount is tied to purchases made through global distribution systems like Sabre, Travelport, and Amadeus, which provide unique identifying numbers for airfare and lodging expenses. These systems are older and i...
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