You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER:  I want to cancel my reservation as my project got ramp down.Can you help me with that?

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: I am John Lopez.

ASSISTANT: John Lopez, there is no active reservation found under your name to do cancellation.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for choosing us.