How To Make A Simple But Powerful Chat Bot In C++

How can I make a simple but powerful chat bot in a C++ app? Where should I start to build a C++ chatbot? Can I develop applications with chat functionality like Siri, Google Assistant and other AI based chat bots with C++ Builder? How can I start to develop a natual language processing NLP based application? Technology moves fast and technologies like artificial intelligence and other support systems for humanity are rapidly evolving into being useful. On the other hand, I see that many chat bots of web pages are really bad and don’t fulfil the simple needs of the webpage’s users.