The buyer has the right to cancel the contract unilaterally if the seller fails to ship the goods within the L/C validity.
如果卖方不能在信用证有效期内交货的话,买方有权单方面取消合同。
It's just the matter of the schedule,that is,if it is convenient of you right now.
如果你们感到方便的话,我想现在讨论一下日程安排的问题。