Do you mind changing your seat with me?

您介意和我换一下座位吗?

Not at all.

当然不介意。

May I take this seat?

我可以坐这个位子吗?

May I move to the non-smoking area for a while?

我可以暂时移到非吸烟区吗?

I wonder if I could change my seat to the front.

我不知道我能不能把座位换到前面。