You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brian Baker.

ASSISTANT: Brian Baker, How exactly I can serve you the best today?

USER: Can you help me in cancelling my recent reservation, due to some health issues?

ASSISTANT: Sure, I can help you in that. Please wait, let me check your reservation status.

USER: Sure.

ASSISTANT: Thanks for your time. Sorry Brian Baker, there is no active reservation on your name to cancel it.

USER: That's ok, thank you for checking.

ASSISTANT: Thanks for approaching us.