i understand your problem and i'll see if there is a vacant seat for you. please take this seat temporarily.
我理解你,我替您去看看是否有空位,请暂时坐这个位置。
sir, as the cabin is not very full today, you can take a vacant seat you like.
先生,今天旅客不多,您可以自由选择一个舒适的座位。
on the other hand, however, many concrete regulations among this system are still in a vacant seat or, restrict, or even offset the regular work of this systems function.
但另一方面,其许多具体的规定又或付阙如、或制约甚至抵消着该制度功能的正常发挥。