Translation of functioning in Spanish

We drove to the airport to do early check-in but it went so quickly that we had four hours left before our flight departed. We therefore took a cab back into town and visited the local market.
The city seemed to be small but busy and many building were new. It looked like a third world country village with four and five star hotels. The infrastructure was still bad, but one could see development.
We blamed the sandwich which we had eaten a day earlier for lunch in Bolivia for the stomach ache of my wife. She became very weak and she had to stay in the hotel for two entire days.