Missing person: Maya, 18, forest-green hoodie

I lost my friend Maya this afternoon in Athens. She's 18 years old, about 1.65m tall, with shoulder-length brown hair and a small star tattoo behind her right ear; she also has a faint birthmark on her left wrist. She was wearing a forest-green hoodie, ripped jeans, and white sneakers when we were near Monastiraki Square around 3pm yesterday, heading toward Ermou Street. I last saw her near the Metro exit by the Ancient Agora, and she vanished into a crowd. I'm really worried—exams are coming up and she has important notes with her. If anyone sees her, please contact me as soon as you can; she might respond to the name Maya.