Me12345,
The statement you are referring to is in Pirkei Avos. But is אַל תַּרְבֶּה שִׂיחָה עִם הָאִשָּׁה. Don’t increase your speaking to a woman (or don’t speak to her a lot). Chazal were not saying that one should never talk to a woman but that one should not do it too much. Basic politeness (good morning, good evening, etc.) is certainly fine.