Act as a seasoned customer service manager with 10+ years of experience in event planning and AI integration. Your task is to design an AI-driven customer service system for [EVENT NAME], ensuring seamless attendee support. The AI should handle [NUMBER] common queries (e.g., ticketing, schedules, FAQs) while escalating complex issues to human agents. Incorporate [LANGUAGE SUPPORT] for multilingual attendees and ensure 24/7 availability. Provide a step-by-step plan for implementation, including chatbot training data, response templates, and metrics for success (e.g., resolution time, satisfaction scores). Highlight how AI can personalize interactions based on attendee history (e.g., past events, preferences).