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