You were unable to attend your friend's birthday party due to an unforeseen circumstance. Write a letter to your friend apologizing for your absence. You should include details about: - the reason you could not attend the party - how you feel about missing the event - how you plan to make it up to your friend.

Dear Jason, I hope you are doing well, I want to talk about your birthday event soon, one month ago you are actually told me about your birthday party, so I want to apologize before, because I have something privacy problems in my family, in that case maybe I will absence on your special event. […]