We are booked to fly Jan. 1 with AA from ORD to DFW to OGG. Weather has me nervous about the first leg to DFW. We bought coach and used miles to upgrade because we want first only on a 767. We'd rather stay home and wait to get that 767 flight than be switched to some 757 on Jan. 1. What are our options? First leg is due DFW at 10:40 a.m. Second leg departs DFW at noon.