You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I booked a reservation to visit Comic con at New York, but due to my bad heath I am unable to visit there. Can you cancel my ticket?

ASSISTANT: Sure, can I have your name please?

USER: My name is Robert Baker.

ASSISTANT: Ok, please wait I will get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, no flight reservation found on your name.

USER: Ok, thanks for the information.

ASSISTANT: Thanks for choosing us.