Translation of formulate in Spanish

We wanted to take a hot shower but there was no hot water at all. We asked someone to fix it and he showed us that there was a heating switch outside the bathroom which would turn on the boiler.
We stepped down slowly and made the walk back to the parking spot. Sam was with us all the time and after Lili visited a souvenir shop he finally brought us back to the hotel where we dressed up.
The same night we went to a great restaurant in town (near the main street). We met a very friendly couple in their fifties from Buenos Aires. They told us many interesting stories about Argentina.