[mooreds]

Not affiliated, but this company built a slack to ticketing system bridge.

https://halp.com

Maybe best of both worlds?

That said, at small companies where I have worked I have found slack/chatops to be very useful. It's already there. You don't need a separate system. Hopefully you have some other work organization tool (Trello, etc) that you can use to track work (slack is great for real-time discussion and history but I'd hate to have it be my to-do list).