You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

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

ASSISTANT: Sure, I am happy to help you in ticket cancellation process.

USER: Thank you.

ASSISTANT: May I know your name for checking purpose?

USER: Yes, I am Virginia Carter.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found for the user name in our data base to cancel it.

USER: That's fine, no problem.

ASSISTANT: You are most welcome and have a nice day.

USER: Thank you for your information.

ASSISTANT: Welcome.