In the air ticket, they had the term. If the delay is not their fault, they don't pay anything. However, you can appeal to them, they will give you some gift for the lost.
這在任何國家都是一樣的。中國人有時做的太過了。一旦有飛機晚點或取消就鬧事。我相信在美國,如你敢鬧事,你肯定就在監獄裏度過那個晚上了。所以,中國機場太nice.