Here's a hypothetical. The Captain and Tennille book a cruise together for 500 per person or 1000 dollars total for the room. Two weeks before sail date The Captain gets called off for a solo gig. Since this is the 100 percent penalty phase for cancellations, his 500 dollar fare is confiscated as penalty for a partial cancellation of the booking. The 500 dollars just went poof to penalty per the terms of the cruise contract. Poor Tennille has now only paid 500 dollars of the 1000 dollar booking and will be assessed the remaining 500 dollars to make the booking whole again. This is why people say to no show because it is not a cancellation. Weird, but that is how it works.