Hello,.
Hello. How may I serve you today?
I am Katherine Rodriguez. I want to change my existing reservation due to postpone of my exams, so can you help me in changing my reservation?
Sure, I'll try to help you in change an existing reservation.
Thank you.
Please wait a moment I will check the reservation list.
Sure.
Thank you for waiting, I have checked in reservation list to change your ticket, but could not find any reservation with your name.
No problem, thank you for the information.
Thank you for availing us.