You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I booked a flight ticket in your agency for my holiday to New York but now I want to get it cancelled. So can you go ahead and cancel my flight ticket?

ASSISTANT: Sure, may I know your name please?

USER: I am Kevin Carter.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: That is not a problem. Thank you.

ASSISTANT: Thank you for opting us.