ask_question
ChatGPTUse this when the user asks a specific question that requires an explanatory answer from the business knowledge base. Requires a query input and returns an AI-generated answer with follow-up suggestions. Use this tool for requests like: 'What is your return policy?', 'How does this service work?', 'Do you offer financing?'. If no relevant knowledge is configured, this tool returns a safe fallback response. Do NOT use for browsing product/service listings (use show_products tool instead). DO NOT use for basic business profile fields like phone/address/website (use show_business_info tool instead).