YOU SAID:

I bought a one-way ticket, do you want me to buy a return ticket?

INTO JAPANESE

片道の航空券を購入しましたが、往復の航空券を購入したいのですが？

BACK INTO ENGLISH

I purchased a one-way ticket, but would like to purchase a round-trip ticket?

INTO JAPANESE

片道航空券を購入しましたが、往復航空券を購入したいのですが？

BACK INTO ENGLISH

I purchased a one-way ticket, but would like to purchase a round-trip ticket?