You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I need  to cancel my recent reservation for some reason. Can you please cancel my reservation?

ASSISTANT: Yes, I can help you. May I know the your name?

USER: Catherine Nelson is my name.

ASSISTANT: OK, please be on hold, I will let you know about reservation.

USER: Sure.

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

USER: No issue, thanks for information.

ASSISTANT: Thank you for choosing us.