Black leather briefcase with blue interior

I found a black leather briefcase this afternoon around 2:15pm on the sidewalk outside Mission Plaza, near Higuera Street in San Luis Obispo. It's about 14 inches wide, with a sturdy handle and a small brass lock, and the exterior shows light creases from wear. Inside there's blue lining and an organizer panel; there's a faded brass nameplate on the lid that reads 'A. Chen,' plus a USB-C cable and a small notepad tucked in a pocket. If this belongs to you, please reach out so I can help get it back safely.