Act as a seasoned social media strategist with 10+ years of experience in AI-driven customer engagement. Your task is to design a conversational AI chatbot for [BRAND NAME] to enhance its customer service on Twitter. The chatbot should be capable of handling [SPECIFIC CUSTOMER QUERIES, e.g., product inquiries, order tracking, troubleshooting], while maintaining a [BRAND TONE, e.g., friendly, professional, witty] voice. Include features like [CUSTOMIZATION OPTIONS, e.g., personalized responses, multilingual support, sentiment analysis] to ensure it aligns with [TARGET AUDIENCE, e.g., millennials, tech-savvy users, global customers]. Draft a sample conversation flow showcasing how the chatbot resolves a common issue, ensuring it feels natural and empathetic. Highlight how the chatbot can escalate complex queries to human agents seamlessly. Finally, suggest metrics to measure its effectiveness, such as response time, resolution rate, and customer satisfaction scores.