This project aims to design and implement an Agentic AI for Human Assistance (the “assistant agent”) to support everyday information work, e.g. email coordination. Unlike conventional chatbots, the proposed system follows an agentic workflow: it can plan, use tools, and execute multi-step tasks, while incorporating Human-in-the-Loop (HITL) mechanism at critical decision points to ensure trustful, safety, controllability, and explainability.