Hi. I am Raymond Brown.
Hello, how can I render you today?
Please help me with changing my reservation due to some changes in the plan of my trip with my colleagues. Can you help me in change an existing reservation?
Sure, I will help you with that. Please wait a while.
Ok.
 Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
Ok, not an issue. Thanks for your information.
Thank you for reaching us.