写一段关于去公园路上的对话,要用上be going to,let me ask,could you.take the b

AB俩人找不到路 C知道路A:I am going to go to the park,do you know the way?B:sorry,i don't know。let me ask another people。B:could you tell me the way to the park?C:you can take the bus over there,which is green。