Tickets left open after "successfull" Answer Bot suggestion

Hi everyone

I hope I'm not duplicating a question already asked here but I've spent the last hour or so searching and can't find anything that helps me.

We recently introduced Answer Bot into our Help Desk and while it's been a huge help, it has thrown up a bit of an issue - essentially, when AB fires on a submitted ticket and, suggests at least one correct article, we regularly don't get any further response from the requester. In some cases, we can see they have viewed the relevant article(s), in some, they haven't viewed any articles but we know that at least one contains the answer. I'm just wondering how other people deal with this scenario?

Our current thinking is to create a trigger that goes off a few hours after the AB suggestions are shared and attempt to elicit a response. I'm concerned, though, that this solution is tip-toeing close to something akin to spamming, with a second automated reply and potentially still no resolution for anyone. Our alternative starts to negate the benefits we are already feeling with the introduction of AB though as it would require more manual intervention on the part of support agents. Albeit, not as much as answering each ticket manually but still, something we would rather avoid. 

Ultimately, the solution would be improved requester behaviour in relation to acknowledging AB suggestions and indicating their relevance or lack thereof. We all know though, that such behaviour changes will take time and may never get where we need them to be so I'm hoping some others can share their experiences - and even solutions - for similar situations. 

Thanks in advance