system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What are the best river cruises for Europe?


assistant
There are many great river cruises available for Europe. Viking, AmaWaterways, Avalon Waterways,Unique Boutique River Cruises and Tauck are consistently rated in the top 5 by Travel and Leisure Magazine.