if (isset($data["DepartureTime"])) {
            $departure = new PTDeparture(1); // we have to set an id as it's mandatory when using a custom data provider (see https://api-platform.com/docs/core/data-providers)
            $departure->setDate(\DateTime::createFromFormat(self::DATETIME_OUTPUT_FORMAT, $data["DepartureTime"]));
            if (isset($data["Departure"]["Site"])) {
                $departureAddress = new Address();