I read your question as, "How do I optimize my ads?" because these chat sequences are basically glorified ads.
After all, you'd want the person receiving your messages to add extra dollars to your bank account; everybody agrees on that.
So, if you look at your chat sequence as a form of an ad, then it's simple.
Notice that I said simple, not easy.
You'll have to come up with different chat message sequences and run all of them to see which ones convert the best.
Once you've picked the best-performing sequence, make changes starting in the beginning, and see if one of these variations has a higher success rate than the original version.
Once you find the winner, make variations by making changes in the middle or in the call to action.
Repeat this process until you find a sequence that will work with most of your target audience.
Is this easy? No.
Does this happen overnight? Absolutely not.
You're going to have to keep running this test until you find something that works.