Of course, if you're going the paid ad route, you could also use Facebook and Google re-targeting to keep that awareness and interest level high. For example, if you've ever noticed after leaving a particular website, that you begin to see their ad everywhere, there's a particular reason for that. Especially if they've already entered your sales funnel, this is a very powerful way to get them to act.
Now, optimally, you’ll want to add more steps to your sales funnel (more on that later), but let’s say this is your bare-bones funnel. To generate leads and collect customer information, you offer a loyalty program, where people earn points for buying pizzas that they can cash in for discounts on future orders. Then, you email them a special coupon, and a percentage of your leads will open that email. A percentage of those opens will actually buy a pizza.
Now your marketing automation funnel is giving you a boost at every stage: It responded within five minutes of their first contact, and that helped get you the chance to make your pitch. Now, after the pitch, you're ready to stay in contact and respond to objections in a friendly, targeted way. (And if they love the pitch, automation can help you stay in close touch until closing.)