You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: I would like my flight ticket to be cancelled which I booked last week for my business trip. So can you cancel my flight ticket reservation?

ASSISTANT: Sure, I am glad to help you. May I know your good name?

USER: I am Christine Thompson.

ASSISTANT: Please be on hold. There is no reservation found on your name in our database to cancel it.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for opting us.