You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: May, I know your good name?

USER: I am Mary Adams.

ASSISTANT: Sorry, we found no reservation on your given name.

USER: No problem, thanks for the information.

ASSISTANT: Thank you for choosing us.