Hello.
user
Hello. How may I aid you?
assistant
I am Donna Carter. I want to change my existing reservation due to postpone of my exams, so can you help me with this?
user
Wait a moment.
assistant
Sure.
user
There is no reservation found on your name to change it.
assistant
No problem, thank you for the information.
user
Thanks for reaching us, have a nice day.
assistant