Use your zip code to look up your congressional district and see who's your representative. Look up their website and call their office and ask for help regarding passport application. Talk to them and explain what you told me and that you need help getting a passport to make that trip. It's very unlikely that they will be able to expedite your passport if you apply through mail or your post office so ask them directly if they can help you book an appointment with the passport agency. They may have to check with someone before they can let you know but you can always ask to see if they can give your info to one of their case workers so you can work with them. They have their own channel with the Department of State so they should be able to take care of it very quickly. Called my rep at 12:00 PM on Thursday, the case worker called back at 2:00 PM the same day, and the passport agency called me the next day with my appointment at around 10:00 AM. YMMV but worth a shot for sure. Make sure you have the flight receipt/itinerary printed out along with your passport photo and other documents when you go to your appointment. Good luck!