After victory over Bournemouth, Conte was asked about United's demise.
He said, "It's not simple to play in England, not only in the league but also in the FA Cup and the Carabao Cup. We must pay great attention in every game. At the same time, these cups are very good for these surprises. You don't know what will happen before the game.
"It's a surprise, but in England it's very difficult to face every team."
Conte added: "To reach the semi-finals is a remarkable achievement for us. We want to reach Wembley and play the final, but we know the other teams want the same."