How about 36?
Maybe 36 then? Or perhaps 36?
Sorry, doesn't sound like successful bargaining to me. The bot passes the smalltalk phase (which it can't process anyway, since all it gets is a subjective appreciation), but when it comes to money it fails inexplicably: How hard is it to parse the "60" in the seller's sentence and suggest something between 36 and 60, instead of insisting stupidly on 36? I would had assumed that's the easiest part to automate, with some psychological insight about how to stay over the rejection limit of your opponent and drive the negotiation down as much as possible without risking a rejection.