Why does the woman advise the man the sublet?

Questions 23 to 25 are based on the following talk on Amsterdam American Hotel.
    The Amsterdam American Hotel is located at the heart of Amsterdam, in the middle of the famous Leidseplein Square, full of restaurants, bars and theatres. It was built in 1900. It has 6 floors with 175 non-smoking guestrooms. Many of the rooms overlook the Leidseplein Square.
    This hotel has a very good location, in the center of Amsterdam, close to shopping streets and museums such as Van Gogh Museum and the beautiful Vondel Park.
    The room rate(that is the price of one room for’one day)includes tax and service charge. A booking of 9 rooms or more is considered a group reservation and can enjoy a lower price and a different cancellation policy. Breakfast is charged at $ 19 per person per day.
    Check-in time is at 3 p. m. If you may arrive earlier, you’d better reserve the room for the night before. Check-out time is at 12 noon. Hotel kindly requests you to take this time into consideration. If you would like to stay longer and check out later than 12 noon, there will be a charge at $ 35 per room per hour, until 3 p. m. After 3 p. m. another day’s room rate will be charged.