Final answer:
Without specific details on sortation process, we cannot determine the number of flow meetings to be held during the first hour of sortation.
Step-by-step explanation:
Given the question's context, in the scenario of a store where customers arrive on average every two minutes, it's necessary to relatedly determine the frequency of flow meetings during sortation. However, since the provided information does not explicitly state the ideal number of meetings during the first hour of sortation, and because we should avoid making assumptions, we cannot definitively answer how many meetings should be completed without additional specific details regarding sortation processes or organizational practices.