A note for asking a friend to have a lecture

　　Dear Mr Green,

　　There will be a lecture on a brief history of the Emperor Palace given by professor Ram from the palace museum in the childrens palace at 3:00 tomorrow afternoon. If you are interested in the lecture, pls get to the childrens palace before 3 oclock. The childrens palace is not far from your hotel. You may walk there. It will take you only a few minutes. When you go out of the hotel, turn left and walk down the street until you come to a traffic light. Take a right turn there, walk two crossings and you will see a post office on your right. The childrens palace is next to it. See you tomorrow afternoon.

　　Yours truly,

　　Liwen.