RSV at boston shouldnt be too long... maybe 2 or 3 months?
Be ready to go away to Chicago and Dallas for trips... especially Chicago. And if they send you away, always pack enough clothes for how many days you are on reserve.
They may be sending you to Chicago for just a 2 day trip, and sure enough at the end of 2 days... they will have more flying for you in Chicago all the way up to your days off. The brighter side, you get to go to some places you wont see once you hold a line in Boston. Welcome aboard!