You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: May I know your name?

USER: Sure, my name is Alexander Martin.

ASSISTANT: Sorry, there is no reservation found.

USER: That's no problem.

ASSISTANT: Thank you.

USER: Thank you for your information.