You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you for the day?

USER: Owing to an emergency, my planned trip to Houston Sky diving has been cancelled. So I had a request to you to cancel my existing reservation?

ASSISTANT: Sure, to proceed with cancellation we need your good name?

USER: Sure, I had a reservation with name Timothy Lopez.

ASSISTANT: Thank you for providing your name. We found a reservation on your name, shall I proceed with cancelling?

USER: Yes, you can.

ASSISTANT: Your ticket has been cancelled. The money will be send to your account as soon as possible.

USER: Thanks for your kind service.

ASSISTANT: Thank you for making us to cancel your reservation.