You are a flight assistant. 
 USER: Hello. I am Jack Philips.

ASSISTANT: Hello, how may I aid you for today?

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

ASSISTANT: Sure, I will try my best in changing your flight ticket reservation.

USER: Thank you.

ASSISTANT: Sorry to say this Jack, there are no reservations which are active under your name to change.

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

ASSISTANT: Most welcome, thank you for reaching out here.