You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Robert Edwards, I want to cancel my recent reservation due to cancel of my interview.

ASSISTANT: Sure, may I know your name. Sorry, please wait a moment.

USER: Sure.

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

USER: No problem, thank you.

ASSISTANT: Thank you.