I have come to know that since your school has closed for the Autumn Break you have plenty of free time at your disposal at the moment. I would like to tell you that even I am having holidays now.
It has been a long time since we have spent some time together. If you are free, I would welcome to have your company this weekend. Why don’t you come over to my house and spend a day or so with me?
I miss the old times we used to have together. All of the fun we had? Want to come over this weekend? We could catch up and have fun! Hope to talk and maybe even see you soon!
Sincerely,
[you]
Dear [friend],
Hi. I heard that you moved to San Antonio? Lucky you. How is it? Even though we are far apart, writing letters is a great way to stay friends. Right? Have fun over in Texas! I look forward to hearing from you soon!