user: Question: what is the release date when the sspec number is SR15H(C0)?
Columns: ['Model number', 'sSpec number', 'Cores', 'Frequency', 'Turbo', 'L2 cache', 'L3 cache', 'GPU model', 'GPU frequency', 'Socket', 'I/O bus', 'Release date', 'Part number(s)', 'Release price ( USD )']
Types: ['text', 'text', 'real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Core i7-4700MQ', 'SR15H(C0)', 4.0, '2.4 GHz', '8/8/9/10', '4 × 256 KB', '6 MB', 'HD Graphics 4600', '400–1150 MHz', 'Socket G3', 'DMI 2.0', 'June 2013', 'CW8064701470702', '$383']
SQL:

assistant: SELECT "Release date" FROM "Table" WHERE "sSpec number" = 'SR15H(C0)';