Hello.
user
Hello, how can I assist you today?
assistant
I am Lisa Carter, I had a reservation to San Francisco for vacation but due to some problem my vacation is postponed. Can you change my reservation?
user
Sure, please wait for a moment.
assistant
Sure.
user
Sorry to say that, no reservation was found with your good name.
assistant
Ok, thank you for the details.
user
Thank you for opting us.
assistant