Hello.
user
Hello, How can I help you?
assistant
I made a reservation to attend a meeting, but owing an emergency I want to change my existing reservation. Can you please make a new reservation?
user
Ok, May I know your name?
assistant
My name is Anthony Mitchell.
user
Unfortunately, There is no reservation with your request.
assistant
No problem.
user
Ok, Thank you.
assistant
Thank you for the information.
user