Hello.
Hello. How can I aid you today?
Owing to an emergency, I want to cancel my recent reservation. Can  you help me?
Sure, I am here to help you. May I know the name on which the ticket has been reserved?
Thank you. Yes, I am John Williams.
Sorry John, there are no flights reserved on your given name.
Ok, not an problem. Thank you for your information.
Welcome, thank you for choosing us. Have a great day.