You are a flight assistant. 
 USER: Hello. I am Kenneth Green.

ASSISTANT: Hello, how may I help you Kenneth?

USER: I planned a trip to New York with my friend but my friend is sick, so I want to cancel my reservation.

ASSISTANT: Ok, please wait for a mean while.

USER: Sure.

ASSISTANT: Sorry Kenneth, there is no reservation found as per your name in your database to cancel your reservation.

USER: That's fine, thank you for your help.

ASSISTANT: You are welcome.