Translation of Sender-Empfänger

We drove towards the university where he studied and from there we drove to the hospital where he worked. He told me that there were hospitals for locals and for foreigners with different medical equipment and staff.
I visited a few churches near the center and decided to climb the mountains nearby, on which there were also churches. My intention was to get a good shot at the town from above, a bird view.
I called the Hilton hotel in Cuba and asked them whether it was worth coming or if they suggest to postpone the arrival. Their response was clear: Don't come unless you really have too.