Translation:Give me a haircut, please.
"Cut my hair" is a perfectly accurate and a more literal translation than "Give me a haircut," but it was marked wrong.
and the phrase is not 자르다, it is 깎다. the phrase is used for especially cutting your hair. although you can use 자르다 for hair also, you cant 깎다 your whole head off.
Please place your head above the basket, face down. If you'd like, we have assorted magazines or a chance for you to repent.