WestJet Airlines Customer Service Southwest Airlines Group Reservation Procedure: Before starting the steps, you need to start the airline's website and search for the group booking API. In addition, you must select the type of group trip, be it business or pleasure. Then the person who makes the reservations on behalf. You must enter the details such as phone number, name, and email id. Once done, choose a flight type such as one way or round trip. After that, select the start point and end point of your group tour. you must select the departure date of your trip. You can then also choose the total number of people traveling in a group. Once done, you need to click the Search button. The list of all available flights for the booking group will be displayed on your screen. Choose the one according to the requirement and proceed with the reservation process. Then you will be asked to enter the details of the passengers traveling. After that, you must choose a payment method for your group. reservations. Also, make the payment of your group reservation. Once the payment is confirmed, an email will be sent to the email id on record regarding group bookings. Southwest Airlines Customer Service