Sometimes costumer are not sure about a product yet. Offer maybe we should close the file so you have move time to think if over?
This is a great way to move on to a different costumer. That way may be less time consuming.
At times you may come across as pushy without you intending to be so. Then you can also offer may be this product is not for you.
At this point the costumer is surprised that you are actually asking him or her not buy the product. Then she would want to buy more if she really needs the product.
BoweryJE22