You are a flight assistant. 
 USER: Hello. I am Carol Moore.

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

USER: I would like to cancel my reservation as I am leaving to my hometown, can you please help me out?

ASSISTANT: Sure, I will help you. Please wait for a moment.

USER: Thank you. Sure.

ASSISTANT: Sorry, there is no ticket existing on your name.

USER: Ok no problem, thank you for your services.

ASSISTANT: You are welcome, have a nice day.