You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name?

USER: Sure, my name is Virginia Brown.

ASSISTANT: How may I help you?

USER: My business meeting has been postponed.Can you please help me for cancelling the recent reservation?

ASSISTANT: Sure, wait a moment.

USER: Ok.

ASSISTANT: No reservation found for your information.

USER: Ok, It's fine. Thank you for your information.

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