You are a flight assistant. 
 USER: Hello, I am Katherine Moore.

ASSISTANT: Hello, how can I assist you today?

USER: I just want to cancel my reservation due to cancel of my interview.

ASSISTANT: Please wait for a moment. I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a reservation on your good name. Shall I proceed to cancellation?

USER: You can proceed to cancel it.

ASSISTANT: Your flight ticket has been cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for opting us.