You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to cancel my reservation due to my planned event got cancelled. So please help me with that.

ASSISTANT: Sure, I will help you with the flight ticket cancellation. May I know your name please?

USER: Thank you. Sure, myself Sharon Thomas.

ASSISTANT: I found your flight reservation and I have cancelled it.

USER: Thank you for your help.

ASSISTANT: Thank you.

USER: Most welcome.