user: Question: What is the name before 1954 with more than 15 floors?
Columns: ['Rank', 'Name', 'Height ft ( m )', 'Floors', 'Year']
Types: ['real', 'text', 'text', 'real', 'real']
Sample row: [1.0, 'Wells Fargo Plaza', '296 (90)', 21.0, 1972.0]
SQL:

assistant: SELECT "Name" FROM "Table" WHERE "Year" < 1954.0 AND "Floors" > 15.0;