Montreal has won four straight; Johnston has goal, assist for Dallas. **DALLAS --** Cole Caufield and Alex Newhook each scored twice, and the Montreal Canadiens defeated the Dallas Stars 5-2 at American Airlines Center on Thursday.Phillip Danault had a goal and an assist, and Noah Dobson had two assists for Montreal (8-3-2), which won its fourth straight game, all of which have been on the road.