You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you the best today?

USER: I would like to cancel my previous reservation because the planned trip got cancelled suddenly due to some financial issues. Can you please help me to do that?

ASSISTANT: Sure, we are pleased to serve you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: I am Stephen Evans.

ASSISTANT: Please wait for a while.

USER: Ok, take your time.

ASSISTANT: Thanks for your time, there is no active reservation found in your name.

USER: Oh! I think the ticket is not booked properly. Anyways thank you for checking.

ASSISTANT: Thank you for opting us.

USER: You are welcome.