yǒu rén wèn zhè lǐ yǒu rén ma rú guǒ méi yǒu rén jiù zhí jiē shuō méi rén kě yǐ zuò

有人问“这里有人吗”，如果没有人，就直接说“没人，可以坐”。

When someone asks, "Is anyone sitting here?" and there is not, just say, "No, you can sit here."