YOU SAID:

i think im going to go get a pizza later, anyone want a slice?

INTO JAPANESE

私は後でピザを買いに行くつもりだと思います、誰もがスライスを望んでいますか？

BACK INTO ENGLISH

I think I'll go buy pizza later, does anyone want a slice?

INTO JAPANESE

私は後でピザを買いに行くと思います、誰かスライスが欲しいですか？

BACK INTO ENGLISH

I think I'll go buy pizza later, does anyone want a slice?