{
  "nodes": [
    {
      "id": "s",
      "type": "startCall",
      "position": {"x": -200, "y": 0},
      "data": {"name": "Start", "prompt": "Greet the caller."}
    },
    {
      "id": "e",
      "type": "endCall",
      "position": {"x": 0, "y": 0},
      "data": {"name": "End", "prompt": "Say goodbye."}
    }
  ],
  "edges": [
    {
      "id": "ghost-e",
      "source": "ghost-node",
      "target": "e",
      "data": {"label": "from nowhere", "condition": "always"}
    }
  ]
}