When we can’t sell a passenger a round-trip ticket, what should we do as the station officers?
A.
The station officer should explain the reason why there’s no round-trip ticket patiently.
B.
The station officer could advise the passenger to buy one-way ticket and get another one-way ticket on the way back.
C.
The station officer could advise the passenger to buy a prepaid transportation card.
D.
The station officer could advise the passenger to download a payment app and pay for the journey conveniently.