Hello.
user
Hello, how can I help you?
assistant
I want to change my reservation due to postponed of my exam, so please help me in changing.
user
Sure, please provide me your name?
assistant
Sure, my name is Janet Parker.
user
Please wait a minute.
assistant
Sure.
user
There is no reservation found with your name.
assistant
No problem, thanks for your information.
user
Thank you for reaching us.
assistant