schema.FlightPricingResponse

{
    "baggage_rule": "20kg",
    "change_rule": "起飞前24小时改签免费",
    "combined_total_fare": 1222,
    "expired_at": "2026-05-28 14:30:00",
    "offer_id": "eyJhbGciOiJBMjU2R0NNIi...",
    "passenger_fares": [
        {
            "airport_tax": 50,
            "base_fare": 580,
            "fuel_tax": 0,
            "passenger_type": "adult",
            "service_fee": 20,
            "total": 650
        }
    ],
    "price_changed": false,
    "refund_rule": "起飞前2小时退票收取票面50%",
    "return_baggage_rule": "20kg",
    "return_change_rule": "起飞前24小时改签免费",
    "return_offer_id": "eyJhbGciOiJBMjU2R0NNIi...",
    "return_passenger_fares": [
        {
            "airport_tax": 50,
            "base_fare": 580,
            "fuel_tax": 0,
            "passenger_type": "adult",
            "service_fee": 20,
            "total": 650
        }
    ],
    "return_refund_rule": "起飞前2小时退票收取票面50%",
    "return_supplier_changed": false,
    "supplier_changed": false,
    "total_fare": 650
}