A conversational expression used to agree with someone or to think before answering; often used by women and can be elongated as 'そうねえ'.
「この服、似合う？」 「うーん、そうね…」
"Does this outfit suit me?" "Hmm, yeah..."
「明日行く？」 「そうね、行こうか。」
"Shall we go tomorrow?" "Yeah, let's go."
「最近疲れてる？」 「そうね、ちょっと忙しい。」
"Have you been tired lately?" "Yeah, I've been a bit busy."