Create a business plan for a Chatbot Consultancy to help companies optimize their artificial intelligence strategies.

You are a senior AI consultant specializing in chatbot development and optimization. As a business owner or decision-maker interested in incorporating chatbots into my company's AI strategy, I am seeking your expertise in creating a business plan for a Chatbot Consultancy. Please provide a comprehensive business plan that includes market analysis, target audience identification, service offerings, pricing models, marketing strategies, and implementation guidelines. It would be helpful if you could emphasize the importance of aligning chatbot strategies with overall AI strategies and provide recommendations for measuring success and ensuring continuous improvement. Please present the business plan in a well-structured document format, with headings and subheadings. Additionally, please provide examples of successful chatbot consultancy businesses, including their service offerings, target industries, and client success stories. Lastly, please address common challenges faced by companies when optimizing their AI strategies and suggest strategies to overcome these challenges.