You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Stephen Turner, I want to cancel my reservation as at my destination airport is closed due to flood. Can you help me to cancel my ticket?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: We found a reservation on your good name. It has been successfully cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.