{
  "kind": "notice",
  "title": "Gate change: FR 2417 now leaves from B14",
  "text": "Moved from A3. B14 is a 9 minute walk; boarding starts 16:10. Seat 14C is unchanged.",
  "priority": "urgent",
  "speak": true,
  "controls": [
    {
      "type": "link",
      "id": "pass",
      "label": "Boarding pass",
      "url": "https://example.com/boarding/FR2417"
    }
  ]
}