How to look for Hawaiian Air award space?

We are keen to book business class seats from Sydney to Honolulu or vice versa using our velocity points for Jan next year
I have checked AA website and it used to show business class award seat availabilty now there are none- only economy seats?? anyone has any suggestions on where else I can find Business Class seat availiabilty charts for Hawaiian airlines?

Join Hawaiian Miles at  It’s free.

Then log in and check availability directly.