あの人ひとと会あったのは、一度いちどきりだ。

ano hito to atta no wa, ichido kiri da.

I met him exactly the once, and that was that. neutral

今日きょうは二人ふたりっきりで話はなしたいんだけど。

kyou wa futarikkiri de hanashitai n da kedo.

I'd like to talk today with just the two of us. casual