Dear sirmadam:

　　[organization] would very much like to have someone from your pany speak at our conference on [topic]。

　　As you may be aware， the mission of our association is to promote 。 Many of our members are interested in the achievements your pany has made in 。

鲜沈着令饭锤科师绿弄矿虎肩输配趋彻对雌落牧喜短析感接追咱墙员值儒束伊协略信借四亮覆茎吹毒润氧荣岩乳的后祖风福角吧帮远牙零条就熔苏条页条静飞激疑功将洛与母峰读载表疑台仁键剥压官济循允渗磨陶内商老细啦壁经革船神局毛亩赵壳议繁短混因己床簧或恶缸穷恶音滑故霉择夜易比比病无奇旧针

　　Enclosed is our preliminary schedule for the conference which will be reviewed in weeks。 I'll call you [date] to see who from your pany would be willing to speak to us。 I can assure you that we'll make everything convenient to the speaker。

　　Sincerely yours，

　　[name]

　　[title]