听力原文：This is Vanessa Garbo with the traffic report. All of the cars on the three major freeways are moving swiftly this morning, as today is Thanksgiving holiday. On the western side of the city, traffic on the Donner Freeway and the Oppenheim Expressway is very light. On the eastern side of the city, cars on the Beaumont Overpass are moving without any problems. Downtown, there seems to be a traffic jam on the corner of Bishop and Montgomery. It appears there has been a minor traffic accident with no serious injuries. Elsewhere near Servo Street and Dante Avenue, a small pickup truck has flipped over and has caused one eastbound lane to be closed. Finally, the small group of 14 ducks we reported on earlier this morning has crossed French Lane safely. Two cars stopped for two minutes to allow the animals a safe crossing. For Chicago This Morning, I'm traffic reporter Vanessa Garbo. Who most likely is the speaker?