Good luck on it.
The most recent thing was a remake of my Blockland chatbot.
And not one of those learning exercise "If i say exactly this phrase, then the chatbot says exactly this phrase," it learns everything from external sources and constructs somewhat decent random sentences.
Also, a tip. If you type 'using namespace std;' after the #includes you won't have to type std:: before every cout/cin/many other things you haven't learned yet.