英语改错On one day, when I was a cafe in honolulu,I saw sailor w

英语改错
On one day, when I was a cafe in honolulu,I saw sailor watching a bright young woman carefully. The woman looked quite sadly. He walked toward her and starting searching for anything on the ground at her feet. Before long, she asked him if he has lost something. The sailor turned very seriously, "yes." he said,"I'm looking for a smile was lost." Slowly there had a smile on the woman's face. That sailor told her what was just the one he was looking for.
请找出错误，并改正，说出为什么。谢谢