Hi.
user
Hello. How may I aid you today?
assistant
I am Jason Perez. I need to change my existing reservation, can you please help me with that?
user
Sure, I am here to help you out. Please allow me a moment.
assistant
Sure.
user
Sorry  Jason Perez, there is no active reservation on your name in our database.
assistant
Ok, no problem.
user
Thank you for reaching us.
assistant
Thanks for your information.
user