{
  "type": "function",
  "function": {
    "name": "offer_compensation",
    "description": "Offer compensation certificate for flight issues",
    "parameters": {
      "type": "object",
      "properties": {
        "user_id": {
          "type": "string",
          "description": "User ID"
        },
        "reservation_id": {
          "type": "string",
          "description": "Affected reservation ID"
        },
        "issue_type": {
          "type": "string",
          "enum": ["cancelled_flight", "delayed_flight"],
          "description": "Type of issue"
        },
        "passenger_count": {
          "type": "integer",
          "description": "Number of passengers affected"
        }
      },
      "required": ["user_id", "reservation_id", "issue_type", "passenger_count"]
    }
  }
}