How do I report a potential predator?

I got a friend request from someone I don't share servers with and he said "you know me, we're tiktok mutuals" and "in the future, if you ever felt like talking".

I don't use tiktok. He's also in a roblox community fallenSuns_Shack, if that means anything.

Is there a ticket or something I can use to report the whole conversation instead of message by message?