Shares Reservation System
central reservation system[1]
(CRS) is a computerized system used to store and retrieve information
and conduct transactions related to air travel. Originally designed and
operated by airlines, CRSes were later extended for the use of travel
agencies. Major CRS operations that book and sell tickets for multiple
airlines are known as global distribution systems (GDS). Airlines have
divested most of their direct holdings to dedicated GDS companies, who
make their systems accessible to consumers through Internet gateways.
Modern GDSes typically allow users to book hotel rooms and rental cars
as well as airline tickets. They also provide access to railway
reservations and bus reservations in some markets, although these are
not always integrated with the main system.
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