1. Try with the main search tool rather than the multi-city.
2. If that doesn’t work, check whether SYD-JFK is phantom availability. It’s not the easiest route to find award seats, so it may not actually be available.
You can check by clicking through to at least the screen where you enter your details.
3. Next, check if you can get CBR-SYD on its own.
If yes to both it might be a married sector issue.
4. You can try calling to book and ask for the assistance fee to be waived as you were not able to book the flights online.
