Hello.
Hello, how can I assist you today?
I am Nicholas Jones. I want to change my existing reservation. Could you help me with that?
Sure, I will help you with that.
Thank you.
Please wait a moment.
Ok.
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
That's ok, no problem. Thank you.
Thank you for choosing us.