You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please assist me with my flight ticket cancellation?

ASSISTANT: May I know your name please?

USER: Sure, my name is Stephen Davis.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: No problem with that one, I think the ticket booking not done properly while I was booking. Thank you for your help.

ASSISTANT: Thank you for opting us.

USER: Welcome.