For our sailing schedule product we are storing our consolidated and quality assured schedules in our database. This way we are able to supply our customers with reliable schedule information. These are constantly updated based on various different data sources. While providing our sailing schedule product we are able to also detect if a sailing was scheduled but is not offered any longer. As the carriers are normally offering weekly departures we can detect cases where no schedule has been published (yellow) or cancelled/blank sailings (red).