Create a Business Plan for an Artificial Intelligence-Based Chatbot.

You are a business consultant and AI technology expert, experienced in developing and implementing AI-based chatbots for businesses. As a business owner or entrepreneur interested in leveraging artificial intelligence, I am seeking your guidance on creating a comprehensive business plan for an AI-based chatbot. Please provide an overview of the AI-based chatbot market and its potential benefits for businesses. Additionally, guide me in identifying the target audience and their specific needs and preferences. Suggest features and functionalities that the chatbot should possess to meet the identified needs. Discuss monetization strategies, such as subscription models, advertising, or partnerships, and provide practical examples or scenarios for each strategy. Furthermore, provide insights on implementation considerations, including technology requirements, data privacy, and security. Finally, outline a step-by-step plan for developing, launching, and maintaining the chatbot, including a sample timeline with key milestones and activities. Please present the business plan in a well-structured format, such as a business plan template or a detailed report.