Hello, I am Anna Mitchell.
user
Hello, how can I aid 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. Can you help me in change an existing reservation?
user
Sure, please wait a minute.
assistant
Ok.
user
Thank you for your time. Unfortunately we didn't found any reservation according to your name.
assistant
Ok, no problem. Thank you for your information.
user
Thank you for opting us.
assistant