Hello.
user
Hello, how can I assist you today?
assistant
I am Steven Phillips, I want to change my reservation as my plan to meet my share holder is postponed. Can you help me with that?
user
 Sure, I would be happy to help you. Please wait a while.
assistant
Sure.
user
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
assistant
Ok, thanks for the details.
user
Thank you for choosing us, Have a pleasant day.
assistant