Hi, I am John Roberts.
user
Hello, how can I help you today?
assistant
I need to cancel my recent reservation due  to postpone of my friends marriage. Can you please help me?
user
Sure, please wait a moment.
assistant
Sure.
user
Sorry to say, no reservation found with your name.
assistant
No issues, thank you for your information.
user
Thanks for reaching us, have a good day.
assistant