Hope this helps, got my naturalization last week in Brooklyn and went to get my passport to the agency, they will look at itinerary, naturalization, form, pictures and will ask you to wait. I got there at 7:30 which was a big no, no! Be there at 5am and u will be telling a great story, in my case I had to wait 6 hours.....no food allowed in the building. It's boring and if you can apply at the post office it's so much easier(did it for my son and was in and out). Anyway if u are traveling the same day they will ask you to get in one line that goes way faster than the one I was in.
Anyway, other 200 people knows about this same passport agency and they will be there on the same day, so take my advice and get up early, print out everything, get ready to pay $195 and u will be fine. Good luck!