帮我写一个英语短文invitation letter是生日会

Dear XXX,
I am very glad to invite you to attend my birthday party at six pm Friday night in my house.You are one of best friends and you have offered me great help in the last year,and I am really looking forward to sharing the special day,my 22nd birthday,with you and other friends as well.
Let’s have fun and please be there.
Yours
XXXX

Dear Mr. Higgins,
We have pleasure in inviting you to our annual conference. This year it will be taking place at the Metropolis Hotel, Brighton from 24 to 28 July.
Last year you gave ...