You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you at this moment?

USER: My holiday vacation to Detroit got cancelled, will you help me to cancel my recent reservation?

ASSISTANT: Sure, I am here to assist you.

USER: Thanks.

ASSISTANT: May I know your name?

USER: My name is Brenda Phillips.

ASSISTANT: Please wait for a couple of minutes.

USER: Sure.

ASSISTANT: We found reservation on name of Brenda Phillips and I have cancelled successfully.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for approaching us, have a nice day.