You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My business meeting has been cancelled, could you please help me with cancelling my recent reservation?

ASSISTANT: Sure, I will help you with that. May I know your name for checking the previous reservation status?

USER: My name is David Lee.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: That's ok, not an issue.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: Thank you for the information.