You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you at this moment?

USER: Actually my Snooker's competition is postponed, so that I want to cancel my recent reservation. Can you help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can I know your name to check your previous reservation status?

USER: Ok, I am Stephen Turner.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: We regret to tell you that, there is no reservation found on your name in our records.

USER: That's fine, no problem. Thank you for your valuable time.

ASSISTANT: Thank you for reaching us, have a great day.