Group 1 - The core viewpoint of the article highlights the continued decline of Hong Kong airline stocks, with China National Aviation falling over 3% and reaching a new low in recent adjustments, accumulating a drop of over 23% within the month [1] - Other airlines such as China Southern Airlines and China Eastern Airlines also experienced declines of 2% [1] - Beijing Capital International Airport stock decreased by 3.76%, while China Southern Airlines and China Eastern Airlines stocks fell by 1.96% and 1.93% respectively [2] Group 2 - From March 13, several domestic airlines that had resumed some flights to Dubai have canceled flights to Dubai again, with no flights available until at least April 1 [2] - Airlines including Air China, China Eastern Airlines, and China Southern Airlines had previously resumed some flights from major cities to Dubai, but these were not full regular flights and required safety assessments for each flight [2] - The ongoing conflict in the Middle East has led other international carriers, such as Lufthansa and Air France-KLM, to extend the suspension of certain regular commercial flights to the region [2]