Recently booked a flight ORD-DFW-SCL with a fairly tight connection (shade under an hour), though I should have realized that before booking. Looking ahead, what's the likelihood of AA allowing a same day change to an earlier ORD-DFW flight or routing via LIM on AA/LA in case of a missed connection (assuming available space)? Ticket is booking code Y ORD-DFW and P (premium economy) DFW-SCL.No status.