In states without single party consent, both/all parties involved have to give consent to have their communications recorded. If one person consents for ChatGPT and the other doesn’t, then it would be a violation unless you specifically tell everyone that all messages going forward will be sent and read by ChatGPT.
At least I’m relatively sure, but something about ChatGPT not being a sentient entity or something might invalidate it but it’s an interesting question.