Please translate the following, thank you:

iguazu-ga than men,
Cam on iguazu-ga da chuc mung sinh nhat Mai, tre ma iguazu-ga nho la
dieu hanh phuc nhat doi voi Mai roi, Cam on, chan thanh cam on
iguazu-ga nhe.
iguazu-ga dang  ban lam viec gi vay? hay la iguazu-ga lai chuan bi di
du lich o dau? neu di choi Mai chuc iguazu-ga di choi vui  ve . Neu di
lam  Mai chuc iguazu-ga  thanh cong  trong cong viec nhe, Vai loi goi
den iguazu-ga, than chuc iguazu-ga luon khoe, vui ve nhieu hon nam cu.

Hi iguazu-ga,

Below is the translation for the letter.
---------------------------------Translation begins-----------------------------
Dear iguazu-ga,
Thank you for wishing me a happy birthday; even though it's late, your
remembering it makes me happy.  Thank you, sincerely thank you.

What are you busy doing? Are you preparing to travel somewhere again? 
If you're going let me wish you a happy trip.  If you're going to work
I wish you success in your career.  I wish you always in good health
and be happier than last year.
---------------------------------Translation ends--------------------------------

secret901-ga

Fast reply! Thanks.