Translation of "Responding" in Japanese

I'm sorry for the delay in responding.

返事が遅れてすいません。

But that's not what I was responding to.

私が気になったのは そこではありません

It is how we are responding to those things

その物事に対して 私たちがどう反応するか

Don't waste any more time responding to that customer.

その顧客に応対してこれ以上時間を無駄にしてはいけない。

He and I have a near-telepathic understanding of each other. No sooner does one of us say something than the other is already responding.

彼とはツーと言えばカーの仲だよ。以心伝心の仲とでも言っておこう。

It was about the year 2000 when I remember doing my first trip to Korea. Using my limited Korean, I had lots of trouble asking for basic things like where the train or bus were, and even what the way was to places. I remember lots of people responding to me in English, and while I was pretty relieved at that, I’ve gotta say: people in the country right next to us, speaking a language from peoples on the other side of the world! It’s only when you look at it in that objective state of mind that you realize how strange that is.

２０００年頃はじめて韓国へ行った私は覚えたての韓国語で四苦八苦しながら道を尋ねたりバスや電車の行き先を聞いたりしていました。たまに英語で話してくれる人がいるとほっとするのですが、逆に、隣の国なのに地球の裏側の国の言葉で話している自分を、客観的に見て不思議に思ったものです。