Manage booking: Hong Kong Airlines also permits its customers to manage their bookings online; they should visit the website. To further view, modify or cancel their booking and check-in online available. Passengers can manage their Hong Kong Airlines booking on the Hong Kong Airlines website, the HongKong Airline mobile application, or contacting Customer Services . Passengers might have to provide the following in order to manage their booking: Booking Reference number, passengers last name and contact info.