It all started with Eliza. The human spieces is well known to adjusting things to be the way they want it to.
Computers are no exception.
The area in Computer Science that deals with this is Artificial Intelligence . There are rather few programs of that kind today. The best working are naturally the ones that are connected to expert systems. The user computer conversation is then limited to a very few topics. These programs try to emulate a real 'intelligent' conversation with the user.