Sorry, it was Cassie Bernall. Her parents also wrote a book called “She Said Yes”.
I love Christ, and so it’s not out of ambivalence for His faith that I have to say that the “story” about Cassie Bernall is the result of a mistake. Cassie loved the Lord, and lived for Him, but she didn’t participate in that “she said yes” exchange. You can google her name to find out more.
Also proved false after the investigation. They didn’t target her for her faith.