There are 6+ seats available on flight 1290 ATL-DTW at 10PM tonight. Should have no problem making that flight. Although, it may be too late as it looks like they are about to push the AGS-ATL flight. FYI, hotels will often work with people with non-refundable reservations in these cases. Call them. Also FYI, airlines will not generally re-imburse for non-refundable hotel reservations, etc. About the best you can expect are some Skymiles or an e-voucher for future travel.