You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: I am Frank Lewis.

ASSISTANT: Please wait for a mean while.

USER: Ok.

ASSISTANT: Sorry Frank, there is no active reservation found as per your name to cancel it.

USER: No problem, thanks for your information.

ASSISTANT: You are welcome.