赛门：妳可以告诉我去程和回程的日期吗？

Simon:Can I have the dates for your departure and return?

youdao

购买往返飞机票，未乘去程，返程也无法使用。

To buy a round-trip ticket, not to take the process, also cannot use the return.

youdao

订座：一年有效期去程需确认日期，回程不用确认日期。其它有效期需全程确定日期。

Reservations: it takes a year to confirm the validity of the date of return do not confirm the date. Determined to be Quancheng other valid date.

youdao