Take the hiring manager through a typical sales call.
"For me, a typical sales call will include some pre-work to get to know the client. I will start the conversation out light by telling them a bit about my findings on their company and I will ask them about their needs. I will then talk to them, in a consultative manner, about how our product will benefit them. I will close the sales call by ensuring that the client fully understands what we are offering. From there, if there are no roadblocks in the clients' understanding, I will then ask for the sale."