I disagree with most of the responses in regards to cause but essentially reach the same conclusion.

The running out of the room is not the main problem. The main problem is that it seems to have ruined productivity for an entire 3-day trip.

If she had calmed down, recovered, realized she had a learning experience, made amends, and then been able to make the rest of the 3-day trip productive, then she might be very valuable indeed.

I suppose there is still hope, depending upon specifics.