Looking for some answers for Creating a Chatbot

I am interested in creating a chatbot and have done some research. Realizing there are several ways to do it the question that gets stuck in my head is: where do I get the data? For example if I want to create a chat bot that can answer questions in regards to fixing cars, what would the data be linked to? Obviously connecting the chat bot to crawl a website that has the technical information would probably violate a ton of copyright laws.