[
  {
    "session_id": "sess_001",
    "initial_state": "idle",
    "human_input": "Can you help me with this task?",
    "robot_response": "Of course. Please specify the task.",
    "state_transition": "idle_to_listening",
    "timestamp": "2026-01-01T10:00:00Z"
  },
  {
    "session_id": "sess_002",
    "initial_state": "listening",
    "human_input": "Move this box to storage.",
    "robot_response": "Task confirmed. Executing now.",
    "state_transition": "listening_to_executing",
    "timestamp": "2026-01-01T10:01:30Z"
  }
]