The attorney appointed to represent David Montes has moved for leave to withdraw and has filed a brief in accordance with Anders v. California, 386 U.S. 738, 87 S.Ct. 1396, 18 L.Ed.2d 493 (1967), and United States v. Flores, 632 F.3d 229 (5th Cir. 2011). Montes has not filed a response. We have reviewed counsel’s brief and the relevant portions of the record reflected therein. We concur with counsel’s assessment that the appeal presents no nonfrivolous issue for appellate review. Accordingly, counsel’s motion for leave to withdraw is GRANTED, counsel is excused from further responsibilities herein, and the APPEAL IS DISMISSED. See 5th Cir. R. 42.2. Montes’s motion for substitute counsel, as well as his motion to proceed pro se on appeal and for an extension of time to file an appellate brief, are DENIED. See United States v. Wagner, 158 F.3d 901, 902-03 (5th Cir. 1998).