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。