You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

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

ASSISTANT: Sure, may I know your name to cancel.

USER: Sure, I'm Helen Lewis.

ASSISTANT: Lewis, no reservations with your name.

USER: That's no problem. Thank you for your information.

ASSISTANT: Thank you for contacting us. Have a good day.