We need to book 3 tickets (3 passengers) for 2AC on this train (Sabari Express) for HYB-ERN on 27th May. At present, as I write this, there's only one 2AC seat Available. This would mean the second and third passengers would be placed on RAC1 and RAC2 respectively. Given that the travel date (May) is peak tourist season (summer vacation), and that there is only one 2AC coach for this train, what are the chances of the RAC1 and RAC2 getting confirmed by the day of travel (i.e., 27th May). If the seniors/experts opine there are very good chances of the RAC1 and RAC2 getting confirmed, then I shall go ahead make the booking. Please advise.