You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I respond to your request?

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

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: I am Donald Walker.

ASSISTANT: I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: That's ok, thank you for giving information.

ASSISTANT: Thank you for choosing us.