This tutor doesn't write the follow-up message for you, and it doesn't decide on its own which stalled conversations deserve a reply. It teaches the three right moments to talk again with someone who showed real interest and then stopped replying: two hours, one day, and three days after the customer's last message. To do that, it asks how many conversations you have open without a reply, which one is the oldest, and what you did, or didn't do, two hours, one day, and three days after each customer went quiet.
From your answer, the tutor shows you where you stand in the cycle: whether you still do nothing when a customer stops replying, whether you already follow up now and then but with no fixed timing, or whether you already use the three moments and just need to log the final status of each conversation. If you say you'd try again after already reaching out for the last time, it corrects you toward the rule of closing things out with respect.
You leave the tutoring with a task: apply the two-hour, one-day, and three-day sequence to every conversation that showed real intent and then stopped getting a reply, over a 72-hour cycle. You log the conversation, the time of the customer's last reply, the next planned contact, and the final status. No tool is recommended for this part of the work: the one that exists today uses different timing than what's taught here, and mixing the two would confuse the right moments to reach out.