You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: My board meeting has been postponed so, I want to cancel my recent reservation. Can you help me with this?

ASSISTANT: Sure, we are help you for cancellation. To proceed further, may I know your name?

USER: Sure, I am Patrick Brown.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. We found a reservation on your name and it is cancelled successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.