In order to help minimize instances of passenger misidentification, we recommend including your Rapid Rewards frequent flyer number in every Southwest Airlines reservation. This number is unique to each Customer, and it is helpful in our efforts to identify our Customers electronically and enable online and/or kiosk check in. We suggest using your first, middle, and last name in your reservation. The name entered in your reservation must match the government-issued identification carried by the Customer during their travel.