When I booked through Airbnb I accidentally booked the wrong dates with Eva. She was nice enough to refund me the money and allow me to book on my correct days (with a different one of her places because unfortunately the one I wanted was sold out on the dates that I would be in Vienna). I appreciate her help. Getting to Europe was difficult with airline cancellations and being rerouted to missing our original train ride, Eva and friends were pretty flexible and waited around for us to finally get to Vienna. Thank you for your hospitality.