求一个英文信范文：内容是请外国人发一封邀请函，以便我们办理签证。

Question

具体内容：
附件为老总的护照信息，老总预计9月底10月初要到澳洲公司开会，所以请出邀请函给我以便给老板办理签证。
谢谢！不要机器翻译的，是给国外一个公司老板发的，所以口气需要客气些

Answer 1

最简略的表达如下，请参考。

Dear Sirs:
Would you please send me a formal invitation letter for Mr. xxxx, the president of XXX company, so that we can make our visa application for our attending the conference to be held in Australia.
His passport information are as follows:
Full Name Date of birth Passport No. Occupation

Thank your for your help.
Looking forward to your reply,

Sincerely yours

（不知道现在澳洲签证需要什么形式的邀请函，如传真，PDF版还是其它规定。这需要在信件中告诉对方）