Well if the person who said its the next available flight that decides things no matter the cabin and the next fight that isnt soldout is 3 days later and a G fare as the rest of their segments are, then it should price out as whatever a reg G fare is

Id think if the next flight was 3 days away even in the same fare basis the computer will sell it not as 1 tkt but as 2 a NY-LAX & LAX-OGG. I do believe if the NY-LAX was a G and when they get into LAX theres no flight to OGG till the next morn , then the fare will be the same as if they were connecting onwards once they got to LAX. I think if you book via a Multi-City and chose the 2nd flight out the day (if there is 1) that the fare will be broken since you arent making the 1st possible connection out