You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my recent reservation, due to some health issue. Can you help me?

ASSISTANT: Sure, I will help you out. May I know your name please?

USER: Thank you. I am Carol Hill.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found on your name to cancel.

USER: Ok, not an problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your information.

ASSISTANT: Have a nice day.