请教各位专家，
有何渠道能得知我们的I485消息？RD6/22/2005，1st FP10/22/05。给Mr.Hardy写了一信，想得到是否FBI NC完成了没有，可他劈啪回了三信，啥也没说我们想得到的东西。“To promptly respond to requests, we concentrate on identifying main files in the central records system at FBI Headquarters. No records responsive to your FOIPA request were located by a search of the automated indices.”
不知他咕噜这些是啥意思。请各位高人指教。