TrainSeatInfo

{
    "seatId": "erdengzuo",
    "displayName": "Example",
    "availability": 8,
    "currency": "CNY",
    "price": 553,
    "originalPrice": 553,
    "childPrice": 276.5,
    "childOriginalPrice": 276.5,
    "serviceFee": 20,
    "features": [
        "WIFI",
        "REFU"
    ]
}