The same will happen to software - it'll get boring but you'll be paid to do.. not all that much.
Yeah for many that 'problem solving' thing w.r.t code will go. But there's other things they'll spend their time thinking about.
Also these personal assistants will crash and burn. Something else will come in the future. These chat bots are not it. Technology keeps evolving - if you get stuck on the chat paradigm... its over for you.