First Cancellation

[Michael-Ray1]

Almost going on two years hosting remotely...Superhost for sometime....had a guest show up early, request early check in, not an issue....the next morning early, they cancelled the balance of their 3 night stay. I was concerned sometimes these are emergency or family related changes...but no they cited the place smelling bad (dog), stained couches, noisy outside. I have a property manager that lives next door check on the property immediately after they left and take pics (sent to me)...couldn't find  what they reported...asked my house cleaners to stop by and review....same story...didnt see what was reported...all the furniture is new, bedding is new. So what do I leave for a review? Do I notify Airbnb?