Hello, I have considered a type of chatbot, but I am not sure of its feasibility with Botpress. If it's possible, I would like to have some guidance or directions from you. It's about a search chatbot. In other words, the chatbot's knowledge base would be a large PDF file. Therefore, the user will have to enter a keyword, and the chatbot will use its knowledge base to generate content. The chatbot will also need to present its response in PDF format, a PDF that the user can then download. Is this feasible? Are there other ways to create this type of chatbot? Thank you.