Translation of notify in Spanish

I am trying to learn Spanish because Spanish is becoming more and more important in the USA because of immigrants. Especially here in Texas. I used to live in Nevada for many years. Boring place, gotta tell ya.
We stayed in this place for quite a while as it was the most spectacular place we have visited so far. It was unbelievable how much thought was put into construction of these magnificent sites.
There was an extra seat available (the last one apparently). We were so glad. 45 minutes later we sat in the place, eighty percent of the plane was empty. They really need to update their system.