You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Charles Turner.

ASSISTANT: Yes.

USER: Due to an emergency, my trip is cancelled. Could you help me in cancelling the reservation?

ASSISTANT: Sure. Sorry, there is no reservation on your name.

USER: That's ok.

ASSISTANT: Thank you and have a nice day.

USER: Thank you for your time.