For canceling ticket offline passenger need to follow some simple steps mentioned below: Call on the customer service number. Choose the preferred language. Ask the agent to cancel your ongoing trip. By offering reservation code with the passenger name complete the cancellation process with ease. Ask the travel agent about the refund amount and processing period. After completing the cancellation process the airline will send you a confirmation mail on registered email and mobile number. For canceling tickets offline, passengers need to pay service fees extra.