You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, I am glad to help you with one. May I know your name for checking purpose?

USER: Susan Wright here.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT:  Thank you for waiting, I have checked in reservation list to change your ticket but could not find any reservation with your name.

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

ASSISTANT: You are most welcome and thank you for approaching us.