请根据下列图画和文字提示写一篇短文，记述Tom假期打工所经历的一件事。词数80—100。短文的开头已给出(不计入总词数)。要求故事完整，句子通顺，内容与所给材料相符，并能表达白己的观点。

文字提示：an interview, take on, a young man with his girl friend, enjoy themselves, a wallet, a diamond(钻石) ring, money, worried, be thankful

One day in the summer holiday, Tom found a waiter was needed in a bar.