Thanks. It is a JQ code but booked on the Qantas website. I've got the JQ PNR from CMT but I'll call JQ at some point to sort out seats and confirm all is ok. I did a dummy booking for the same flight departing in a few days (just to see if there are typically lots of seats available near departure) and only middle seats and a few window seats were available so I guess it is a good idea to ensure I get a seat pre-assigned in case my flight (not until March) follows a similar pattern.