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In airline reservation systems, a record locator is an alphanumeric code used to identify and access a specific record on an airline’s reservation system. An airline’s reservation system automatically generates a unique record locator whenever a customer makes a reservation or booking, commonly known in the industry as an itinerary.
If the traveller fails to reconfirm their flight reservation, the airline may cancel it. [3] This also means that if the traveller is forcefully deboarded (" involuntary deboarding ", or "bumping", in jargon) from a flight because of the airline's overbooking , the traveller can not receive the standard compensation.
Many airlines have their CRS hosted by one of the GDSs, which allows sharing of the PNR. The record locators of the copied PNRs are communicated back to the CRS that owns the Master PNR, so all records remain tied together. This allows exchanging updates of the PNR when the status of trip changes in any of the CRSs.
Once a flight has departed, the reservation system is updated with a list of the checked-in passengers (e.g. passengers who had a reservation but did not check in (no shows) and passengers who checked in, but did not have a reservation (go shows)). Finally, data needed for revenue accounting and reporting is handed over to administrative systems.
When a reservation is confirmed, the airline keeps a record of the booking in its computer reservations system. Customers can print out or may be provided with a copy of a e-ticket itinerary receipt which contains the record locator or reservation number and the e-ticket number. It is possible to print multiple copies of an e-ticket itinerary ...
A team was set up consisting of IBM engineers led by John Siegfried and a large number of American Airlines' staff led by Malcolm Perry, taken from booking, reservations, and ticket sales, calling the effort the Semi-Automated Business Research Environment, or SABRE. [citation needed] A formal development arrangement was signed in 1957.
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United Airlines and Trans World Airlines followed in 1971 with the Apollo Reservation System and Programmed Airline Reservation System (PARS), respectively. Soon, travel agents began pushing for a system that could automate their side of the process by accessing the various ARSes directly to make reservations.