user: Question: Name the date of vacancy for Manuel Pellegrini
Columns: ['Team', 'Outgoing manager', 'Manner of departure', 'Date of vacancy', 'Replaced by', 'Date of appointment', 'Position in table']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Málaga', 'Antonio Tapia', 'Mutual consent', '1 June 2009', 'Juan R. López Muñiz', '13 June 2009', '8th ( 2008–09 )']
SQL:

assistant: SELECT "Date of vacancy" FROM "Table" WHERE "Outgoing manager" = 'Manuel Pellegrini';