json_schema: {
    "properties": {
      "departure_date": {
        "description": "The departure date of the flight",
        "type": "string"
      },
      "destination": {
        "description": "The destination of the flight",
        "type": "string"
      },
      "origin": {
        "description": "The origin of the flight",
        "type": "string"
      },
      "passenger_count": {
        "description": "The number of passengers",
        "type": "integer"
      },
      "return_date": {
        "description": "The return date of the flight",
        "type": "string"
      }
    },
    "required": [
      "origin",
      "destination",
      "departure_date",
      "return_date",
      "passenger_count"
    ],
    "type": "object"
  }