You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nancy Davis.

ASSISTANT: 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: Ok, please wait for a while.

USER: Sure.

ASSISTANT: As per your request, I have cancelled your reservation.

USER: Thanks for the help.

ASSISTANT: Most welcome.