Hi, myself William Phillips.
user
Hello, welcome to flight booking agency. How can I assist you today?
assistant
My business meeting has been postponed, so I would like to change my existing reservation.
user
Ok, let me check for the previous reservation in our data base.
assistant
Sure. Take your own time.
user
Your patience is greatly appreciated. William, there is no reservation found under your name.
assistant
That's alright, no problem. Thank you for your help.
user
You are welcome. Thank you for contacting us.
assistant
Welcome.
user