If I have a name a personal number of a scammer from Pakistan, who can I contact to stop them?

Long story short, scammer calls me, says my debt is high and he can help reduce interest blah blah blah. scammer tries to get info from me. I procrastinate give him fake info and continue convo. scammer still talking. Me: ( while I'm "getting my card") " Hey you have a family? How are they, blah blah bah. short convo. He single no kids and tries to hit on me… " What would you say if I proposed to you right now?' 🙄 Uhh…. I laugh it off… play along.. I don't even know you.. blah blah blah. I tell him fake story about me, name, age bday, relationship status… oh he's real interested now.. Convo continues for a bit.. You have Whatsapp?..

hmmmm.. lol Well….
…. convo convo

How about I give you a call

What your number?

He gives it to me?
name? That too.

What can I do with it to stop these criminals.

Oh, yeah, he caught so caught up he forgot to finish scamming me. This needs to end.