Hello. Samuel Jackson here.
user
Hello, how may I help you today?
assistant
Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation.
user
Sure Samuel, I am here to help you. Sorry Samuel, there is no reservation found as per your name to change it.
assistant
That's ok, thank you for informing.
user
You are welcome.
assistant