Hello.
user
Hello. How may I assist you?
assistant
I want to change my existing reservation, due to my exams has been postponed.
user
Sure, I am here to help you out.
assistant
Thank you.
user
May I know your name please?
assistant
Sure, you can check my reservation on the name of Donald Thomas.
user
Donald Thomas, we regret to inform you that there is no reservation found on your name in our records.
assistant
That's Ok, thanks for your information.
user
Thank you for approaching us.
assistant