Due to the irreversible nature of cryptocurrency protocols, transactions can neither be cand nor reversed once initiated. In this scenario, it would be necessary to the receiving party and ask for their cooperation in returning the funds. If you do not know the owner of the address, there are no possible actions you can take to retrieve the funds.
Because of this, it is essential to exercise caution when sending. It is always recommended that you double check the address you are sending to exactly matches the address of the recipient before sending.