Is it possible to get user's ethereum wallets name from the address he is using?
No, because wallets create their address on the blockchain itself so if you have the private key you can even switch to other wallets with the same address.But it i possible to find the exchange if it is from an exchange's address.
Most likely if ever you find the address belongs to exchange.
The chance of knowing their info if they complete the KYC, but the chance is very very slim, exchange needs to protect
the identities of the people who used their platform. Unless there's something special that you can show them to provide the
information you need.