zen Eleventh Circuit cases involving prosecutions under § 2422(b), most of which involve this prototypical fact pattern. See. e.g. United States v, Morton 364 F.3d 1300 (11th Cir. 2004), vacated for further consideration in liaht 21 Booker, 125 S. Ct. 1338 (2006), opinion reinstated by, 144 Fed. Appx. 804