参考范文：

Dear Sir/Madam,

I am Li Hua, a high school student in China and I plan to have some fun during my summer vacation. Having read your ad on the Internet, I’m writing for further information about your party.

First, when will the party start on July 9th and what is the dress code? Besides, is it possible to let me know what speakers will be invited and what topics will be shared at the party? I wish there would be something I am interested in. Finally, considering the budget, I need to confirm in advance how much I have to pay for the admission fee. Would you please also reply me with the exact pick up location please?

I am looking forward to your early reply.

Yours faithfully,

Li Hua