From video, I think that IT is important for tourism industry because everyone use social media at least 1 account user for used to communicate with others around the world, which it easy to registering such as Facebook, Twitter, Instagram, Line, YouTube, etc. Travel brands and airline can use social network to advertise and invite customers to use the services with fast and a lot of customers. Social media and social network help customers have participate with activities of travel brands directly which make customer interested your brands more and can develop your business more. Nowadays, mostly customers use online booking, which can use by computer or mobile phone, to reserve anything because they can booking by themselves easily, quickly, and conveniently. Social media or network maybe make your business successful and make more profit easily. So, IT system both social media and mobile phone is very useful for tourism industry because it help customer know currently information of brands with fast and correctly.