Correção de mensagem para 'host family' em inglês

Gente, vou fazer um intercâmbio e preciso responder um e-mail a minha host family, mas estou morrendo de medo de ter algum erro ridículo !

Quem puder dar uma lida e comentar, agradeço muito !!!

Dear Mr and Mrs Baker,

Let me tell you a bit about myself.

My name ( ), I am ( ) years old. I live in Sao Paulo, Brazil, with my parents and sisters, I am the oldest one.

I really thank you for receiving me into your house. This exchange program is something that I've always wanted and I am very happy and excited for traveling to Oxford.

Well, I do not have my flight times yet. As soon as I get it, I will send to you.

Just for curiosity, is attached a recente photo of my family.

Yours faithfully.