You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please?

USER: I'm James Williams. I need your help in cancelling my recent reservation. Can you please help me with that?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, take your own time.

ASSISTANT: Sorry James, there is no reservation found on your name. Do you want any more information?

USER: Thank you for the information. No, That's all I needed.

ASSISTANT: Thank you.

USER: You are welcome.