急求英语短对话一段，谢谢！

要求：2人对话，四级水平，长度3分钟足够，主题是气候变化。
我设计了一个情节：两人在街上见面，先谈空气不好，然后说是环境污染导致气候变化，最后说每个人都应该努力改善环境。
考试用的，请一定帮忙，谢谢谢谢！！！！

我来尽力帮你吧。。。

A: Good morning! B! How are you?

B: Fine, thank you! Ugh! This air smells polluted.

A: Yes, I have the same feeling too. I think it is because of the factory nearby. It is polluting the surrounding air.

B: Nowadays, more and more people are developing in this world and starting to overuse the land and minerals of Earth.

A: Yes, and because of this, the climate and temperature is also changing, causing Global Warning.

B: I believe that we all have a responsiblity to take care of our environment.

A: But how?

B: Three things: Reduce, reuse, recycle.

A: Can you explain more thoroughly?

B: Well, for example, to reduce the amount of paper used everyday.

A: ...and how would you do that?

B: Write and print on both sides, don't write or print un-needed scripts.

A: So reuse would be to reuse paper and other stuff?

B: Yes, many things can be reused over and over again, like a cardboard box can be reused and continually putting in many different stuffs.

A: Yes, I am listening.

B: And finally, recycle. Recycle is somehow simular to reuse, because they both had to do with using materials over and over again, the only difference is that you send recyclable materials to the recycling center so it can be remade into new materials. Did you know that your newspaper that you read everyday is made from recycled paper?

A: Cool!

我自己写的，够不够？很开心帮到你。