Appeal to trace take-away knife attacker

We need to trace this man in connection with a dispute at a Wolverhampton take-away that left a staff member needing treatment for a stab wound.The attacker walked into Aunt Sally’s Caribbean restaurant in Broad Street, Wolverhampton, before getting embroiled in a row and lashing out with a knife. 
 
A 36-year-old man received hospital treatment for a stab injury to his chest but was discharged from hospital after receiving stitches.The offender is described as black, in his late