Translation of seventy in Spanish

I had just said that if you wanted we could meet up on the last weekend in October, I have to be in Malaga the following week... Your English is very good! Would be nice to hear something from you!
I wish you would help me to improve my Spanish. I am studying law in Germany and I am trying to learn Spanish. I hope you can help me and I could help you to learn German. Have a great day.
Unfortunately, I have never been to the United States, but I was in Mexico last year, that is close. Zurich is a very nice city, the people are friendly and the lake is very beautiful.