Those guests might not be able to stay long, though: with a number of groupbookings scheduled for later in the week, the walk-in guests may have to find other arrangements.
Group vacation bookings are on the rise, Murphy says, and friends and families often rent villas or all-inclusive packages that allow them to stay together while satisfying a range of interests.
Priceline has rode overseas growth to become the best positioned online travel agency in the group, evidenced by a 65 percent increase in international bookings that helped pad strong 2011 first quarter profits.