Looking for Vietnamese teacher for Korean - Phu My Hung area

My friend is a Korean who is having a personal business in Phu My Hung area. He wants to study Vietnamese (focus on conversations) during day time at his working place (Ha Huy Tap Street, Dist 7, HCMC). Schedule might be 2-3 hours/day and 2-3 times per week during daytime. He prefers an experienced male teacher but might still consider female teacher. You can talk to him in either English or Korean. Time and tuition fee can be negotiated because I'm not sure about market price.