Translation of fortify 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 agreed to meet the next day at seven thirty to avoid the crowds at the entrance. Dinner was great. We went to a restaurant on the main street. The building was French architecture.
We exchanged numbers and they offered that we should contact them once we'd arrive to the capital. After dinner we bought some chocolate in one of the many stores, but it was not tasty, compared to Swiss chocolate.