Hello.
user
Hello, may I know your good name?
assistant
My name is Charles Jackson.
user
Ok Charles, how may I help you?
assistant
My meeting got preponed, so I would like to change an existing reservation.
user
Sure, I can help you in changing. Please wait a moment to check it. Sorry Charles, we cannot found any reservation based on your name.
assistant
Its fine. Thank you for your assistance.
user
Thank you for approaching us Charles, have a nice day.
assistant