Translation of deduction in German

Once the rain stopped we continued to visit some other sites within the city, among them a popular Pagoda, which was not in the center. We took a cab there and enjoyed this beautiful place of worship.
However, his English was excellent and we soon found out that he was an English teacher before the war. We agreed on a price for showing us the entire area during the next 2 days. We took a nap and he picked us up later.
There was an extra seat available (the last one apparently). We were so glad. 45 minutes later we sat in the place, eighty percent of the plane was empty. They really need to update their system.