I booked a Nile River Cruise (spaces were listed as available) only to learn after what I thought was a down payment that the tour operator had to confirm the space and that took at least a week before it happened. Luckily, they accepted the booking as I had already purchased flights based on the cruise. If Tour operators are not going to give faster confirmed bookings, a caveat should be stated for those operators. It worked out in the end, but I would have done things differently had I know. I have used Tour Radar for several trips and haven't had anything like this before. Otherwise, I am very happy with their offerings.