Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to sell airline tickets [title] Confirm that the tickets are transferrable. [step] Airline tickets can only be sold if they are able to be transferred to someone else's name. Contact your travel agent, broker, or the airline to ask a customer service representative if your tickets are transferrable if you are unsure.

Ending1: [title] Travel to the area you want to sell tickets at. [step] If you have a driver's license or work permit, make sure you are as close to the area you plan to sell the tickets at. Ending2: [title] Decide if your ticket needs to be swapped. [step] Only check your departure and arrival dates on airline tickets. Ending3: [substeps] If your ticket is non-transferrable, that will usually be printed directly on the ticket. [title] Find out if there's a fee to change the name. Ending4: [title] Pay the ticket sales charge before making purchases. [step] Airline tickets can be paid for directly by filling out a valid form with pay stubs or paying with credit card, often all of which charge a rate if they are transferrable.

Answer format: ending1/ending2/ending3/ending4