Hello. I am Donna Anderson.
user
Hello, how may I be of your help?
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 with this?
user
Ok, please wait a while.
assistant
Ok.
user
Thank you for waiting. Unfortunately we didn't found any reservation according to your name.
assistant
Ok, no problem. Thanks for your information.
user
Thank you for picking us.
assistant