On the Trip Details page, when you show Booking Information, there is a Confirmation # and a Record Locator. The Confirmation # is the unique reservation number associated with the travel provider or booking site with whom you made your travel reservations. The Record Locator is the unique reservation number associated with the Global Distribution System (GDS) where your reservation was executed. Some GDS’s include Sabre, Travelport, and Amadeus. There may be cases where these values are not available.