请教关于询盘回复后就没有音讯了的问题

之前，询盘有20多封，但是。。。悲哀的是。。。回复了，然后没下文了。。
现在端午回来了，13号，接到一封11号的询盘，来自一些免费平台的。我不知道该怎么回复，才更有效的！！求指教！！本人万分感激！！

please send me the price, is interested in buying

May i know the Min Order Quantity.

How much time will you take to deliver the goods

Kindly send me the complete product catalog with Price list.