Hi.
user
Hello, how can I assist you?
assistant
 I need to change my existing reservation as my exams got postponed, Can you please help me with that?
user
Sure, I am happy to help you. Can I have your good name?
assistant
Anna Smith here.
user
Sorry, there is no active reservation on your name in our records.
assistant
No issue, thanks for the information.
user
Thank you for choosing us.
assistant