Translation of owe in German

Friends, Family and similar relationships you are saying mostly "Du". Young people too. In the city, on the phone, school, at work and in the bank always say "Sie" for now.
In the end we decided to try something new, and although we are not great "fans" of South East Asia, we agreed on going to Thailand, Cambodia, Vietnam and if there would be enough time Hong Kong.
I'm writing you in English because I don't have a lot of time and writing in German will take me a long time. Just a few corrections: you can not say in English How you do, you need to say How do you do...