You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Kimberly Green here. I would like to cancel my recent reservation, can you please help me out.

ASSISTANT: Sure, please wait a while.

USER: Sure.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: That's ok, no problem. Thank you for checking out.

ASSISTANT: Thank you for opting us.