"표를 예매해야 하지?"

Translation: You have to book the tickets, right?

[5amisntlat]

I put "we have to book our tickets, right" and it was marked as wrong - a lot is often assumed in Korean without it having to be said outloud :/

[CF00l]

票를 預買해야 하지?

[SeanFogart4]

票를 豫買해야 하지? 預 means to entrust, 豫 in advance.