Hi, I am Jeffery Hill.
Hello. How may I assist you Jeffery Hill?
Owing an emergence, I want to change my existing reservation. Can you please help me with it?
Sure Jeffery Hill, please wait for a minute.
Ok.
Sorry for the trouble which is caused to you, there is no reservation found with your name in our system data to change the reservation.
No problem, thanks for the help.
My pleasure.