Hello.
Hello, how may I help you today?
I would like to change my previous source code, which is done recently. Can you please help me out?
Sure, I am here to assist you. Let me know your name to check your reservation?
Thank you for considering my request. Myself Ashley Lewis.
Ok, please wait a moment.
Sure, I will wait for  your response.
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
Not an issue, anyway thank you for the information.
Thank you for choosing us.