That's in the south of China.
在中国的南部。

A I'm going to visit friends in Guangzhou next week.

A 我下周要去广州看朋友。

B That's in the south of China, isn't it?

B 广州在中国的南部，对吗？

A It is. It's different from Beijing. The people are different, too.

A 是的。它和北京不同。人也不同。

B And the food!

B 还有食物也不同！

A Yes, Cantonese food is different from Beijing cuisine.

A 是的，广东菜和北京菜很不一样。

B Well, I hope you have a good trip. I'd like to visit Guangzhou myself one day.

B 哦，我希望你旅行愉快。将来我也想去广州。

Notes 注释

1 There are many ways to specify a location or position, you can also use directions, e.g. Guangzhou is in the south of China. / Guangzhou is in the south of China.

要指出确切的地点或者位置有很多种方法，你也可以用方向来说明，例如：Guangzhou is in the south of China. / 广州在中国的南部。

2 You can contrast things by using different / different, e.g. The people are different. / The people are different.; Cantonese food is different from Beijing cuisine. / Cantonese food is different from Beijing cuisine.

你可以用different /不同的来比较事物，例如：The people are different. / 人不同； Cantonese food is different from Beijing cuisine. /广东菜和北京的不一样。

Key phrases and sentences
重要的短语和句子

I'm going to visit friends in Guangzhou next week.
我下周要去广州看朋友。

That's in the south of China, isn't it?
广州在中国的南部，对吗？

It is.  It's different from Beijing. 
是的。它和北京不同。

The people are different, too.
人也不同。

And the food!
还有食物也不同！

Yes, Cantonese food is different to Beijing cuisine.
是的，广东菜和北京菜很不一样。

Well, I hope you have a good trip. 
哦，我希望你旅行愉快。

I'd like to visit Guangzhou myself one day.
将来我也想去广州。