We are booked on the Seascape with side by side cabins. I had called MSC to help coordinate, but the agent kept telling me she couldn't find side by side cabins. I was able to find them when I made mock bookings. So, I used my iPad and the laptop to create each booking at the same time, booking our cabin using one device and our daughter and her family's cabin using another. I was able to secure the cabins we wanted without having to go through the hassle of convincing the agent that there were in fact side by side cabins available.