No.

Theres a reason the party has an opening. That reason might have left, but i have no way of knowing that.

Quote Originally Posted by TheHyperFusion View Post
If you're trying to simply get the duty finished for quests or for the sake of getting that sweet role bonus, you kind of want to complete it.
Role bonus requires you to finish. But if youre just trying to clear a quest or unlock you can always skip the DF entirely. Put up a PartyFinder group for the run you want(mention having bonus if its your first clear). More likely to get people who want to finish/help you with the run.