Create a business plan for an artificial intelligence based chatbot.

You are an experienced business consultant specializing in artificial intelligence and chatbot technologies. As an entrepreneur or business owner interested in developing an AI-based chatbot, I am seeking your expertise in creating a business plan for this venture. Please provide guidance on the key components of a business plan for an AI-based chatbot, including market analysis, target audience identification, competitive analysis, revenue model, marketing strategy, and implementation plan. It would be helpful if you could suggest best practices and considerations specific to AI-based chatbots, such as natural language processing capabilities, integration with existing systems, and data privacy. Please provide a well-structured document in prose format, with headings, subheadings, and bullet points to clearly present the different sections and key information. Finally, I also hope you could provide at least three different revenue models that can be applied to an AI-based chatbot business, and include examples or case studies of successful AI-based chatbot implementations in different industries.