Translation of safe-conduct in Spanish

We drove to the hotel Rex where we made reservations in advance. However, once there, two American guys told us that they had a voucher from a travel agent and the price was like half of it.
I saw your pictures on facebook, some great images. Are you from Los Angeles? Why do you wanna learn Spanish? well if you want you can try your Spanish with me, i am from Paraguay, i am 29 years old.
We spent a few hours around Plaza de Armas, the main square of the town, eating, shopping and sightseeing. A hassling boy tried to sell us some Peruvian chocolate for one Peso.