Translation of polka in German

We decided to fly directly to Hanoi and booked a flight for the same day. Before we left we still had some time to visit the War Remnants Museum. One could see the former headquarters of the South.
I wish you a good trip, when you come to Germany in June! How do you long stay in Berlin? Please help me with my English, in return I will help you with your German. Wish you a nice day!
Well, being the first time in South America, especially Peru, gives you a little shock in the first few hours. Already at the airport everybody wants something ($$$) from you