You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: At last minute my meeting got cancelled which is scheduled earlier, I made a booking earlier for that meeting. I want your help to cancel my reservation?

ASSISTANT: Sure, please wait a moment. May I know your good name?

USER: Joseph Walker, is my name.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for such a quick response.

ASSISTANT: Thank you.