Hello, I am James Mitchell.
user
Hello, how can I serve you?
assistant
I want to change an existing reservation due to my meeting got preponed. Can you help me out?
user
Sure, please wait a while I will check and let you know.
assistant
Ok.
user
Thank you for waiting. Sorry, we did not found any reservation based on your name.
assistant
Ok, not an issue. Thanks for your service.
user
Thank your for choosing us.
assistant