I had booked a ticket for train no:22633 third AC on March. I was allotted a confirmed coach number amd seat number at booking. But, when I checked PNR status today, the current status just shows CNF, without coach/seat number. What does this mean? Will my seat be changed upon charting? I wanted the specific seat in this specific coach and I booked so because I had to match coach number with my family who has a different ticket.