After I passed my interview, I informed the interviewer that I needed to take a trip soon but might have to cancel due to the lack of a green card (or passport) after the oath ceremony. He reassured me not to worry and wrote, "Schedule oath ceremony after my trip date." The next day, I checked my online account and saw that the oath ceremony was scheduled. When I opened the PDF, I realized it was scheduled before my trip. I considered canceling my trip, but then three days later, my online account showed that the oath ceremony was descheduled.
I received the original letter in the mail regarding my oath ceremony details (where and when to attend), but I still haven’t received a second letter regarding the cancellation of my oath. Now, the oath ceremony is scheduled for tomorrow, and I'm unsure whether I should attend or not.