Because if one party is responsible for their own lack. Will provide attendees others are affected as well. And caused substantial damage to both sides of the time. And expenses
Because if a lack of responsibility for its own staff, colleagues and other people affected as well and cause a lot of damage on both sides of the time and expense.
because if the lack of any party responsible for it will be your own responsibility to other coworkers are affected by a wide range of damage and cause both to the time and expense.