Yes, I am. While I am fully aware the current set of AIs don't have feelings or a consciousness as we know it, I can't help but anthropomorphize them, so I'm polite and even catch myself thanking them sometimes.
They're trained on text that includes human interaction, and reactions to different tones of text. It makes sense to me that they'd react in a human-ish way as a consequence, whether or not the feelings are "real" as such.