The document discusses building an instant messaging mobile application that includes an intelligent personal assistant. It describes the objectives to create a WhatsApp, Line, WeChat, or Viber clone with features like an AI assistant, robustness, and good UI/UX. It outlines the AI dialogflow architecture and how fulfillment requests are handled through webhooks. It also discusses the system architecture, design, technologies used, and includes UML diagrams and screenshots. Future work includes creating cross-platform versions, adding more features like video calling and file sharing.