Automatic messages after unresponsivness to bot

Hi, im trying to send a message when a client does not answer to a bot. I´m sending a few options in buttons when the conversation starts, and I would like for the bot to identify if the customer hasn´t responded in 30 minutes and send them a “Are you still there?” message, then wait other 30 minutes and close the conversation if there still hasn´t been answered. Is something like this possible? Fin tells me you can´t send automatic messages if the client hasn´t responded to a conversation with the bot.