White cat with orange patches, green collar

I lost my white cat with orange patches. I last saw him yesterday around 6pm near the Bishop Arts District in Dallas, right by Velvet Taco on Davis Street. He wears a green collar with a tiny brass bell and has a heart-shaped orange patch on his chest; his left ear also has a tiny notch. He's an indoor cat who usually sticks close to home, and this has me worried because he means the world to me. If you found him, reply to this listing or email [email protected]—he's really missed and I want him back.