Hello. I am Debra Martin.
user
Hello, may I know how best I can help you today?
assistant
I want to change my existing reservation due to postpone of my exams, so can you please help me in changing my reservation?
user
Sure, please wait.
assistant
Sure.
user
We are sorry to inform you that, there is no reservation found with your name.
assistant
No problem, thank you for the information.
user
Your welcome.
assistant