You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: I am Katherine Anderson. I want to cancel my recent reservation. Could you help me with that?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, no reservation was found on your name in our database.

USER: That's ok, no problem.

ASSISTANT: Thank you for opting us.

USER: Thank you.