Healing in a parking lot

I was out with a group of young people, I told them about the “miracle-back guarantee” – we don’t go back home, until we see a miracle. While in a mall, I approached a couple of people and wasn’t getting any opportunities to minister. While walking to the car, it looked as if we were going to head home without a miracle. In one last ditch effort, I approached a young couple and asked them if they needed a miracle in their bodies? They were a bit surprised by the question and initially denied they had any need. At that point the Lord gave a word of knowledge about a headache, and I asked which one of them had the headache. The woman did, I prayed and the headache left her immediately. We got to go back with our miracle!