You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: This is Sharon Wilson, and I just want to cancel my recently done reservation.

ASSISTANT: OK Wilson, please wait for a while so that I will check whether any reservation matching with your name or not to cancel further.

USER: Sure.

ASSISTANT: Sorry Wilson, there is no reservation matching with your name to cancel.

USER: OK, that's fine.

ASSISTANT: Thank you.

USER: Thank you.