ちょっと高たかいけど、買かっちゃった。

chotto takai kedo, katchatta.

It was kind of pricey, but I bought it anyway. casual

来月らいげつの分ぶんを予約よやくしたいんですけど。

raigetsu no bun o yoyaku shitai n desu kedo.

I'd like to make a reservation for next month... neutral