answer: #Person1# and #Person3# get a double room on the fourteenth floor with #Person2#'s assistance. #Person3# tells #Person1# that #Person3# can see #Person1# on the balcony from the street.
documents: #Person1#: We'd like a room with two beds, please. 
  #Person2#: A double? Let's see . . . I can put you in room 1405. It faces the river and has a wonderful view. 
  #Person3#: That will be fine. Since we're going to be fourteen stories above the ground, I think we should definitely have a room with a view. Boris, I saw you sitting out on the balcony of our room. I could see you from the street. 
  #Person1#: That's quite a distance. How could you tell who it was? 
  #Person3#: I recognized your bright red shirt. But there's something strange. We're in room 1405, right? Well, when I saw you on the balcony, I counted upward. I only got to thirteen. We're on the thirteenth floor. 
  #Person1#: No, I'm sure we're on the fourteenth floor. The desk clerk said so. 
  #Person3#: I know! I'll look out the window and count downward. I still say we're only thirteen stories up.