You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My business meeting has been cancelled. So, I would like to cancel my reservation.

ASSISTANT: Ok, may I know your name please?

USER: Sure, I'm Gary Lee.

ASSISTANT: Lee, hold on for a moment please.

USER: Sure, take your time.

ASSISTANT: Sorry to say this Lee, we could not found a reservation under your name.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for choosing us. Have a great day.