Hello, I am Kevin Parker.
user
Hello. How can I assist you?
assistant
I already have an reservation to meet my sister. due to some reasons it has been postponed. I want to alter my reservation, Can you please help me with it?
user
Sure, we are glad to help you. Please wait I will revert you in a moment.
assistant
Ok.
user
Thanks for waiting. Sorry to inform you that no reservation found on your name.
assistant
Ok, not an issue. Thank you for your help.
user
 Thank you for availing us. Have a good day.
assistant