You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to cancel my reservation, which is done recently. Can you please help me out?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, I will wait for your information.

ASSISTANT: May I know your good name please?

USER: Sure, myself James Lewis.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Anyway, thank you for the information.