Complex sentence: A dispute between NCL and STX initially resulted in the construction of both ships being placed on hold until a new agreement was reached in which the first ship would be completed and the construction of the second ship was cancelled in 2008.
Split into simpler sentences: A dispute between NCL and STX initially resulted in the construction of both ships being placed on hold until a new agreement was reached. That called for completion of the first ship would be completed; the second ship was cancelled in 2008.