Abstract: A method and system of issuing an electronic authorization and validation for pre-scheduled activities such as airline reservations to eliminate paper tickets. The passenger makes the reservation and allows a reservation operation center to charge the passengers credit card company. A reservation number is issued in the computer. The passenger utilizes a plastic I.D. card that accesses computer for validation purposes. An automatic teller machine, at the airport, allows the passenger to receive specific flight information, departure gate information and the like by the insertion of the I.D. card. A mobile airline communications system at the departure gate includes a cellular telephone network connected to a lap top computer and a magnetic card reader that provides validation of the reservation and payment to an airline employee at the departure which allows the passenger to board the aircraft.