One on One with Preferred Hotel’s Lindsey Ueberroth. World’s tallest hotel opens second tower in Dubai. Hilton reflags Munich Aiport hotel. United brings inflight entertainment to personal devices. Courtyard takes a road trip. National Airlines latest US flag carrier. Loews and Fiat team up. Sri Lankan joins oneworld. Hilton Zhengzhou opens. Hertz Dreamcar fleet debuts in the UK. Hotel Indigo brand comes to three European cities. Cali Marriott premieres. Etihad looks into better sleep.