You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Barbara Phillips. I would like to change my reservation as I am moving to my hometown for festival, can you please help me out?

ASSISTANT: Sure Barbara Phillips, I am happy to help you with that.

USER: Thank you.

ASSISTANT: Ok, please be hold on for a  moment to check your reservation status.

USER: Sure.

ASSISTANT: Sorry Barbara Phillips, no reservation has found under your name to change.

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

ASSISTANT: Most welcome. Thank you for choosing us, have a great day.