[[["Dễ hiểu","easyToUnderstand","thumb-up"],["Giúp tôi giải quyết được vấn đề","solvedMyProblem","thumb-up"],["Khác","otherUp","thumb-up"]],[["Thiếu thông tin tôi cần","missingTheInformationINeed","thumb-down"],["Quá phức tạp/quá nhiều bước","tooComplicatedTooManySteps","thumb-down"],["Đã lỗi thời","outOfDate","thumb-down"],["Vấn đề về bản dịch","translationIssue","thumb-down"],["Vấn đề về mẫu/mã","samplesCodeIssue","thumb-down"],["Khác","otherDown","thumb-down"]],["Cập nhật lần gần đây nhất: 2025-07-26 UTC."],[[["Slot-level cancellation windows can be activated by utilizing the `last_online_cancellable_sec` field."],["This field is returned in the `CheckAvailability` response from the booking server."],["The `last_online_cancellable_sec` example field in the `CheckAvailability` Response is `1552930200`."]]],["The `last_online_cancellable_sec` field, included in the `CheckAvailability` response, enables slot-level cancellation windows. This field specifies a timestamp, representing the last second a slot can be cancelled online. When returned, it allows users to cancel specific slots within the designated timeframe. The example shows a JSON response demonstrating how this field is implemented, including the slot data, available count and the cancellable time.\n"]]