Hello.
user
Hello, how can I aid you for the day?
assistant
I want to change my existing reservation, due to my exams has been postponed. Can you please help me to change it?
user
Sure, I am here to help you.
assistant
Thank you for considering my request.
user
Can you please mention your name?
assistant
Sure, my name is Kenneth Moore.
user
Sorry, no reservation found with your name.
assistant
That's Ok, thanks for your information.
user
Thank you for choosing us.
assistant