Hello good people hereI have a problem which is that I am working as customer service right now $.$ and I am engineering student so I try to make my life easy as every engineer does. So my question is that I have like $100$ pdfs and some word documents and every document has like $10-15$ pages. I get asked questions on the telephone that I need to answer and help people. So what I did today is that I uploaded like $30$ documents to chat gpt and it helped me answer som questions while I was talking on the phone but then I stopped and I could not use any more, it wanted me to start a new conversation. What I need to do is find something like AI tools, page where I can train my chatbot where I can upload all of my pdfs and word documents with no limit so that could ask questions with no limits$.$ Pleas describe how to use whatever you give here as an answer.