假设你是刘芳,你和你的好朋友国庆节要去旅行请你写邮件,邀请你的朋友丽萍参加,并组织好这次旅行.

Dear Li Ping,
I hope everything goes well with you.As you know,Beijing is the capital of our country and a good place to visit,so Susan and I are going to Beijing on Nation Day and we would like you to join us.I have a plan for it.We'll go by plane on the morning of Septmeber 30th,and stay there for four days.The first day we are going to the Great Wall.It's very famous.The second day we are going to visit the Summer Palace.The third day we are going to the Beihai Park and Jingshan Park.We'll return on the fourth day by plane.Li Ping,if you can go with us,you need to take some warm clothes and we'll me at the airport at 8:00am,Septmeber 30th.
Best wishes
Yours