You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I aid you today?

USER: Can you please help me in cancelling my reservation?

ASSISTANT: Sure, may I know your name please?

USER: I am Patrick White.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: There is no reservation found with your given name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.