Hello.
Hello.
Myself Kenneth Perez.
How can I help you?
I want to change my existing reservation, can you help me in changing the reservation please?
Sure. Please be on hold, I will check and revert back to you.
Ok, take your time.
Sorry Kenneth, there is no reservation found  on your name in our data base. Thank you for approaching us, have a nice day.
Ok no problem, thank you for your information.
Welcome.