I’m looking for upgrades on Hawaiian JFK-HNL-OGG next year. I see 9 P class and 3 A class JFK-HNL and 6 P class and 4 A class HNL-OGG. When I booked the economy ticket and called about upgrading, the agent told me there were no mileage upgrades available. Is there something beyond the available fare class that I’m missing? I thought if the A class seats showed as available, I could book the mileage saver upgrade. Thanks.