Hello.
user
Hello. How can I help you?
assistant
I want to change my existing reservation due to postpone of my exams. Can you help me in that?
user
Sure, I will help you to change your reservation.
assistant
Thank you.
user
Please mention your name.
assistant
Carol Adams here.
user
Sorry, no reservation found on your name to change your reservation.
assistant
Ok, no problem. Thank you.
user
Welcome, have a nice day.
assistant