messages.content: 请将下列中文翻译成英语
messages.role: system
messages.content: 警方要求所有的办公人员留在室内不要外出，而且通往弗林德斯街车站的列车也暂停运行。调查正在弗林德斯街和威廉大街的交叉路口展开。
messages.role: user
messages.content: Officials warned all office workers to remain indoors, and train services to Flinders Street Station were temporarily on hold, as investigations were carried out on the intersection of Flinders Lane and William Street.
messages.role: assistant