The 22-year-old arrived in the summer on a season long loan deal.
He has already made 13 appearances for the Cherries in all competitions, scoring four goals in the league, which puts him at second on their list of goal scorers.
Howe told the Daily Echo: "He's done really well. You sometimes forget it's his first season in the Premier League because he's not been fazed at all.
"He's come in and attacked the games. He's built up a really good relationship with Adam Smith. I think you could see that developing (against Man United).
"He's given us really nice balance with the left-footer on the right. He's scored some key goals for us and again he's another player that I think through time and experience and getting to know the group even more, hopefully there's a lot more to come."