Hi.
user
Hello. How may I assist you?
assistant
I am Robert Lee. I need to change my existing reservation as my exams got postponed, Can you please help me with that?
user
Yes, I can help you.
assistant
Thank you.
user
Sorry to inform you that there is no reservation found on your name.
assistant
Ok, no problem.
user
Thank you for reaching us.
assistant
Thanks for your information.
user