If you have imminent, required travel, you need your naturalization certificate in hand before you can call DOS and request an urgent passport service. The travel has to be in less than 3-5 weeks. You need to have proof of international travel - itinerary and confirmation number with the airline, hotel accommodation, etc. Be prepared - you could have to travel to somewhere in the US to attend the appointment and stay a day or 2 until you can pick the passport up after printing. There are no guarantees the appointment will be local.
Expedited passports are taking 3-5 weeks these days, regular passports about 10 weeks.
Requesting urgent service shouldn't be done unless you actually have confirmed travel plans that must be attended to. Just wanting a passport for the sake of having it in hand doesn't qualify. I had urgent travel for work which allowed me to obtain and urgent passport, but it wasted essentially 2 days of my life sitting in the passport offices. We planned my kids' travel so I will be applying for their passports now that they are finished travel for the year.
https://travel.state.gov/content/travel/en/passports/get-fast.html