Contoh singkat surat formal dan informal dalam bahasa inggris

Informal :AndinaJl. Sukamenanti, 16Semarang 2030Hello my friend, how are you there? I hope you are good. I miss you because we have not met in a long time. Do you miss me too? If you are on vacation, I hope you can visit Lampung. I’m sure you will love it because it is a beautiful city. I will take you to many places like Kiluan bay and to the most beautiful places in Indonesia. I know that you love surfing and I have so many secret places for you to surf, so I recommend you to visit here a couple of weeks.Hopefully we can meet soon, my best friend..Your friend,Tika

Formal :June 16, 2014
Mr. Bambang nurrohmanHeadmaster of SMA 12Bandar lampung
Dear sir,On behalf of the class XIA, i am writing this to ask for your permission to hold  an end-of-year party on June 30th, 2014. We would like to use  XIA for the party and will make sure that it is cleaned up after the party.
Mr. Yayan Mulyana, our English teacher, would be the person in charge for this event. He will be with us during the party.
Hopefully, you would kindly allow us to use the classroom. Thank you.

Yours sincerely,

Bayu Pramono Adi XIA class captain