Hello, I am Timothy Thomas.
Hello. How can I useful to you?
I intend to change my existing reservation as my appointment with my doctor got postponed. Can you help me with it?
Sure, I'll help you with this. Please wait a moment I will check the reservation status.
Sure.
Thanks for waiting, I have checked in reservation list to change your ticket, but could not find any reservation with your name.
It's ok, thank you for the response.
Thank you for opting us.