Translation of erwünscht

Dear Arnold, please send me David's contact details. I will arrange a meeting and present him the machine, so that he will know how to operate it properly. Thanks again and all the best.
How could I get better in Spanish if I had to eat by myself. Impossible. The next days we always ate together and sat around the table for hours discussing politics and the lives we were living.
Anyway, i got bored pretty fast, drank a Coconut and orange juice mix and went on. I returned my bike at four before heading again to the beach. By coincidence I met the sister of a colleague of mine.