Hello.
user
Hello, how may I serve you?
assistant
I am Kathleen Davis. I need to change an existing reservation. Can you help me?
user
Sure, I will help you. Please wait for a moment.
assistant
Ok.
user
Sorry, there is no reservation existing on your name.
assistant
Ok, no problem. Thank you for the information.
user
You are welcome, have a nice day.
assistant