You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I just want to cancel my reservation as I have an Important work at my office. Will you help me in cancellation?

ASSISTANT: Sure, may I know your name?

USER: Sure, my name is Thomas Young.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: No problem, thanks for your effort.

ASSISTANT: Thank you for approaching our service.