Abstract: Methods and system for effecting the instantaneous data transmission to a locally operated computer system upon an occurrence in the computer reservation system (CRS). Specifically, a method for automatically generating pre-ticketed travel information is disclosed, in which booked reservation information and traveler information in a is automatically transmitted to a locally operated computer system as soon as the booking of the reservation is complete. When the reservation information included more that one travel transaction, such as an air transaction, a hotel transaction and a rental car transaction, the traveler and reservation information is stored in a manner to track common information between different travel transactions, such as sale information, rather than track individual travel transactions. Also, a method of automatically updating an existing customer profile in a locally operated computer system upon the detection of the update of the corresponding customer profile in a (CRS) is discussed.