Our dinner reservation is at six o'clock.

我们的晚餐预订在六点。

Our dinner reservation is at half past six.

我们的晚餐预订在六点半。

We are cancelling our dinner reservation for tonight.

我们正在取消今晚的晚餐预订。

I need to reconfirm our dinner reservation for tonight.

我需要再次确认我们今晚的晚餐预订。

This is room 1028, I'd like to make a dinner reservation.

我是1028房间的，我想预定晚餐。

This is room 1028, I'd like to make a dinner reservation .

我是1028房间的，我想预定晚餐。