Translation of nonsmoker in German

So we decided to move on. We were looking to get the next flight to Hoi Ann, which is located right in the center of the country, but we were told that there had been floods a week earlier.
People on the bikes continued to drive around us although we were in the middle of the street. Supposedly this city has more than ten million inhabitants and more than three million bikes.
We arrived in there again at night, it was cold and the town was empty. There were few tourist hanging around, but most restaurants and bars were empty. We looked for an hotel and found on immediately.