You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, I am here to help you with cancellation. Can I have your good name please?

USER: Myself Karen Lee.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

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

USER: Not an issue. Thank you.

ASSISTANT: Thank you for availing us.