If possible, I would like to have a talk with you.

如果可能的话，我想和你谈谈。

If possible, I would like to have a talk with you.
如果可能的话，我想和你谈谈。
OK. What's the matter?
好的。怎么了？
Are you free tonight?
今晚你有空吗？
I'm sorry to occupy your time but I'd like to talk with you.

很抱歉占用你的时间，可是我想和你谈谈。

Is something on your mind?

你有心事吗？

Is something on your mind?
你有心事吗？
I messed up something important.
有个重要的事请被我搞砸了。
I know something's wrong. Can you tell me?
我知道有事情出错了？能和我说说吗？
You seem troubled.
你好像很烦恼。
What you got on your mind, Lily?
莉莉，你有什么心事吗？
What on earth are you so grave about?
愁眉苦脸的，你到底怎么了。