Not to get your hopes up but if you're "older" I wouldn't worry too much about getting LGA/JFK. You can most likely bet on ORD 175/145. There were a ton of ORD FO slots open on the last vacancy. DFW is notoriously senior and so it going to NH does happen but slots are very tight generally speaking. You'd most likely be able to get down to Dallas within a couple months if thats your end game however.