user: Question: What are the active dates for the Montana State University chapter?
Columns: ['Chapter', 'Chartered', 'School', 'State', 'Status', 'Charter Range']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Alpha', '1873', 'University of Massachusetts Amherst', 'Massachusetts', 'Active', '1873-Present']
SQL:

assistant: SELECT "Charter Range" FROM "Table" WHERE "School" = 'Montana State University';