Who IS that dog?

When I arrived at the Hyatt in Denver yesterday, there was a dog tied up in front of one of the entrances. Later a crate showed up for her. Who was this dog? Why was she not inside with her human attending the conference? Did the hotel have issues with cute little herding dogs? Being the curious sort, I decided to ask. It turns out that Sadie is the unofficial canine greeter for the BlogPaws conference. She hangs out with her dad, Doug, while he attends to arriving guests. Four paws way up to Sadie and Doug!