承揽人

• Where the hired work is not capable of being completed due to failure by the hirer to fulfill its obligation to assist , the hiree may demand performance from the hirer within a reasonable period and extend the time of its own performance ; where the hirer fails to perform at the end of such period , the hiree may terminate the contract
  定作人不履行协助义务致使承揽工作不能完成的，承揽人可以催告定作人在合理期限内履行义务，并可以顺延履行期限；定作人逾期不履行的，承揽人可以解除合同。