YOU SAID:

i wish for a dog but he went away on a plane ride

INTO JAPANESE

私は犬が欲しいのですが、彼は飛行機に乗って去りました

BACK INTO ENGLISH

I want a dog, but he flew away

INTO JAPANESE

私は犬が欲しいのですが、彼は飛び去りました

BACK INTO ENGLISH

I want a dog, but he flew away