A: Would it be possible to plug in my phone for charging? 

휴대폰 충전 가능할까요?

B: Sure, ask at the counter. 

카운터에 문의해보세요.

A: Excuse me, could I charge my phone here? 

여기서 충전 가능한가요?

B: You can plug in here. 

여기 꽂으시면 돼요.