Use
You use this function to determine all the flight trips that were booked at one travel agency. You can limit the selection of the flight bookings to a flight customer, a flight period, or a booking period. The most important information about the relevant flight trips is returned.

This function is implemented by the method FlightTrip.GetList (function module BAPI_FLTRIP_GETLIST). Read the documentation about this method, which you can access with the
BAPI Explorer.