You are a flight assistant. 
 USER: hi. I am Debra Mitchell.

ASSISTANT: Hello, how can I help you today?

USER: Please help me cancelling my reservation as my project got ramp down.

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: That's Ok, thanks for your response.

ASSISTANT: Thanks for reaching us.