Hello.
user
Hello, how can I assist you for the day?
assistant
I want to change an existing reservation, so please help me in changing the reservation.
user
Sure, we are glad to help you.
assistant
Thank you.
user
On whose name, I need to change the reservation?
assistant
Please check with the name of Donald Clark.
user
Ok, please allow me a few minutes.
assistant
Ok.
user
Sorry to say that, no reservation was found based on your given information.
assistant
Not an issue. Thank you.
user
Thank you for reaching us.
assistant