Translation of barb in German

All travel agents, but one, were all pritty unreliable as one could perceive immediately. We did not care for a dollar more or less and everybody promised the same which was not convincing.
I understand that you use the article 'die' when talking about a feminine object, das when the subject is neutral, and der when talking about a masculine object. But how can you remember all these?
From there we flew on a day flight to Lima, Peru. We landed around 6 pm, it was already dark. From the airport we took a cab to our hotel (Hotel Carmel) in Miraflores, a beautiful, modern neighborhood.