American Archaeologist - captivating conversation classes

I am finishing my Masters in Archaeology here at the Autónoma University, and I would like to teach English conversation classes to advanced Egnlish students who are looking to improve their speaking abilities, vocabulary, etc.  I charge 15euros/hour.  I live in the Salamanca neighborhood, so meeting somewhere nearby could be better, but anywhere in the center of Madrid would be fine. For example, we could meet in the Retiro Park, if the weather is nice. I hope to hear from you soon so you can begin practicing your English!