You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Allen.

ASSISTANT: How can I help you Allen?

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

ASSISTANT: Ok, I feel euphoric to help you. Please hold on for a moment.

USER: Thank you. Sure.

ASSISTANT: Sorry Allen, I have not found any reservation under your name in our website.

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

ASSISTANT: Thank you for choosing us.