急啊！英语六年级上册对话编一个，急啊！

A: hello B 你好B
B: hello A 你好A
A:what are you going to do? 你要去干什么?
B:I want to go to the the Science Museum,could you tell me where it is? 我要去科学博物馆,你能告诉我它在什么地方么?
A:Science Museum? ok,It's in downtown and about 3000 metres away. 科学博物馆?他在商业区,离这有3000米远.
B:How can I get there? 我怎么去那呢？
A:You can take No.101bus to get there 你可以坐101公交车．
B:OK,thank you very mush! 好，非常感谢你！
A:Not at all! 小意思！
B:see you! 再见！
A:see you! 再见！

以上我对标题少有改动，但我觉得更合理，谢谢

A:what are you going to do?
B:I'm going to the Science Museum.
A:Science Museum? Where is it?
B:It's in downtown and about 3000 metres away.
A:How far it is!How do you go there? Walk?
B:No,I'll go there by taxi.Oh,it's too late now,I have to go.
A:Ok,bye.
B:Bye.