Hello.
user
Hello, how may  I guide you?
assistant
My business meeting got postponed, so I want to change my reservation.
user
Sure, I will help you. Can you please tell me your name?
assistant
My name is Edward Garcia.
user
Sorry, there is no reservation with your name to change further.
assistant
No problem, thank you for helping me.
user
That's ok, thank you for the information.
assistant