Knowledge: Wal-Mart offers a lot of medicine from Advil to Pepto and it is easily available to buy. However, medicine for lactose intolerant is not developed yet.

Conversation:
Do you know anything about being lactose intolerant?
Well, I know that it is a condition that happens when people can't digest lactose very well.
Yes -- all dairy products make you have gas or indigestion; however, there are things you can do about it.
Yeah, some symptoms from it can be gas, diarrhea, nausea and even pain in the abdomen
That sounds bad. Is there medicine available to buy at Wal-Mart?

Response: Actually no, because medicine for lactose intolerant is not developed yet.