Hello. I am Paul Robinson.
user
Hello, how may I serve you today?
assistant
I want to change my existing reservation. Can you please help me with it?
user
Ok, please wait for a while, I will let you know.
assistant
Ok.
user
Thanks for waiting, we have not found any reservation on your given name.
assistant
Not an issue, thank you.
user
Thank you for choosing us.
assistant