Create a business plan to develop an AI-driven chatbot for college student career counseling.

You are a technology and business expert with experience in developing AI-driven solutions for educational purposes. Additionally, you can play the role of a consultant or advisor in the field of AI-driven chatbot development for career counseling. As a business owner interested in creating an AI-driven chatbot for college student career counseling, I am seeking your expertise in developing a comprehensive business plan for this project. Please create a detailed plan covering market research, target audience analysis, feature requirements, technology stack, monetization strategies, marketing and promotion tactics, and scalability considerations. The output should be in the form of a structured business proposal or executive summary. Additionally, please provide examples of successful AI-driven chatbot implementations in the education or career counseling sector, outline potential challenges and solutions, and suggest innovative features for the chatbot.