Would you book a hotel using Twitter? USA Today reports that travellers can tweet to @Loews_Hotels with the hashtag #BookLoews to express interest in a room, after which a travel planner will pick it up and contact them. Once the person is ready to book, the planner will DM a link to process payment information. Loews is kicking off Social Reservations with a special promotion. In a nod to Twitter's 140-character maximum, starting at noon ET, Nov. 19, the first 140 Twitter users to book a reservation through the program will get a discounted rate of $140 a night.