Hi.
user
Hello, how can I help you?
assistant
As my exams were preponed, I want to change my existing reservation. Can you help me in doing that?
user
Sure, please wait for a moment.
assistant
I am Jeffrey Wright.
user
Thanks for providing your name. Sorry, there is no reservation found with your name.
assistant
Ok, thanks for your information.
user
Thank you for choosing us.
assistant