Do mixed cabin cash bookings accumulate SQM in total for the booking fare or are they prorated to the % in each cabin. For example, if I book YYZ-FRA-DXB (through AC, “premium economy lowest”) and YYZ-FRA is in premium economy (operated by AC) and FRA-DXB is economy (operated by LH), do I get the 125% SQM rate for the entire trip or just the YYZ-FRA segment?