Hello.
user
Hello, how can I assist you?
assistant
I am Carol Adams. I need to change my recent reservation because I planned to visit the Graham Library  for knowing more information about my project.
user
Sure, please give me a minute.
assistant
Could you please help me in changing the reservation?
user
There is no reservation found with your name.
assistant
That's ok.
user
Thank you.
assistant
Thank you for your information.
user
Have a good day.
assistant