Sorry. A House officer was the most Junior Doctor in the NHS hospital hieracy. They had less than 12 months experience and had just finished at medical school. They do not exist any more and are called FY1 (Foundation Year 1).
This was many years ago for me!!!!!
I am pleased to hear that there is at least one flight to SYD with F (presumably the one I am booked on). I had also heard that ultimately there will only be J from HKG to SYD with CX. I am surprised but I guess that there just isn't enough money in it!
FD