Dear Leila,
Next Friday is my brother's sixteenth birthday. We are preparing a huge party in a very big hotel in Rabat. As we were inviting very few close friends and neighbours, we immediately thought of you.
My brother and I would be very glad if you could come. I'm sure my parents will be very excited to see you among us. It is two years now that we didn't see each other. It will be the most suitable opportunity to meet again and talk about the past. I've got a lot to tell you. So come along!
Don't forget to phone before you come. We'll meet you at the train station.
We are looking forward to seeing you soon.
Best wishes to your family.
Yours sincerely
Samia