My family got stuck in the middle of the night in Paris due to connection flight cancellation last winter. What can I say, airadisor did a great job. We were so shocked as one of the biggest hub in the world was empty and staff didn’t inform us about our rights (especially about the hotel stay that has to be covered by the airline). Back to the topic, we simply googled what to do when your flight is canceled and found airadvisor website. I used the chat and Sara explained to me our rights and advised what to do. With their help we defended our rights and got decent accomodation for the night, food and transportation. They took very good care of my case from start to end. Thanks to them we were well informed and after 9 months got even compensation.