Hello. I am Donna Rodriguez.
 Hello, How exactly I can serve you the best today?
I have some personal matters that need fixing so I need to change an existing reservation. Can you please help me to change an existing reservation?
Sure, I will help you with that.
Sure.
Please wait a moment.
Sure.
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
Ok, no problem. Thanks for your information.
Thank you for approaching us.