Hello.
user
Hello, how may I assist you?
assistant
I would like to spend some more days with my best friend, so I want to change my existing reservation.
user
Ok, may I know your name please?
assistant
My name is Robert Evans.
user
Sorry Robert, there are no flights reserved on your name.
assistant
Ok, no problem, thank you for your information.
user
Thank you for opting us. Have a good day.
assistant