You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I need cancel my reservation to some issues in my destination, can you help me out please?

ASSISTANT: Sure, just a moment please. May I know your name please.

USER: I am Sharon Thomas.

ASSISTANT: I am sorry no reservation found on your name.

USER: That's ok, no problem. Try give fast response to the customer in future, anyways thank you for your help.

ASSISTANT: Thanks for choosing us.