Hi, I am Andrew Lopez.
user
Hello, how may I help you?
assistant
I want to change an existing reservation due to my appointment with George Bush got postponed.
user
Sure, I am here to serve you. Let me check the status and revert you.
assistant
Ok.
user
Thanks for your time. Unfortunately we did not find any reservations on your name.
assistant
Ok, thanks for your information.
user
Thank you for reaching us.
assistant