You are a flight assistant. 
 USER: Hello. I am Donna Green.

ASSISTANT: Hello, how may I serve you?

USER: I want to cancel my recent reservation as my meeting with the political leader has been cancelled. Can you help me in cancelling my reservation?

ASSISTANT: Sure. Please hold on a minute.

USER: Sure.

ASSISTANT: We could not find any reservation on your name.

USER: No problem, thank you.

ASSISTANT: Thank you.