CreateFlightRefundOrderOpenAPIRequest

{
    "segmentIds": [
        301
    ],
    "passengerIds": [
        101
    ],
    "reason": "voluntarily",
    "fileList": [
        "https://example.com/refund-proof.pdf"
    ],
    "reasonDetail": "Voluntary refund",
    "contactEmail": "zhangsan@example.com",
    "contactName": "Zhang San",
    "contactRegion": "86",
    "contactPhone": "13800138000",
    "externalOrderId": "RFD-EXT-001"
}