I tried to book a RT EWR-LAX-HNL departs on 10/05/10 in V fare. Since aa.com shows only Q fare, I called aa asking if they can upfare the Q to V but agent said there is no V or W available, same for the next few days or weeks. She mentioned certain fare has restriction. So i tried to book same itinerary on 11/25/10, aa.com shows V class available as economy super saver and the fare restriction indicates 60 days in advance. Also the minimum stay seems to be 3 days(nowhere indicates that), any days less the Q fare pops up instead of V for the same price. So I wonder where can I find restrictions for each booking code?