You are a flight assistant. 
 USER: Hi. I am Edward Evans.

ASSISTANT: Hello, how can I aid you today?

USER: As my part of my schedule I made a reservation earlier to attend a client meeting, But unfortunately the meeting got cancelled. So, please cancel my reservation.

ASSISTANT: Sure, wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, but I am sorry to there is no reservation found on your name.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for opting us, have a great day.