Found:

Is this your watch? It's a black watch. My name is Cindy Brown. You can call me at 359-5934.

Lost:

I'm Linda Green. I lost a yellow ring. If you find it, please call Bill or me. My phone number is 485-3982. Bill's telephone number is 683-5912.

Found:

Is this your jacket? It's a red jacket. And an ID card is in its pocket(口袋). My name is Mike Smith. My telephone number is 239-5178. Please call me.