Problem - Meeting Rooms

Given an array of meeting time intervals $[\text{start}, \text{end}]$, determine if a person could attend all meetings (no overlaps).

Example: $[[0,30], [5,10], [15,20]]$ returns false because $[0,30]$ overlaps with both other meetings. This is interval overlap detection. Can any two intervals overlap? Constraints: up to $10^4$ meetings.