Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_46531 ( "Date" text, "City" text, "Country" text, "Venue" text, "Tickets available since" text, "Attendance" real, "Comment" text )

### Question ###
How many tickets were available at Halle Tony Garnier on June 15, 2009?

### Accurate SQL ###

SELECT "Tickets available since" FROM table_46531 WHERE "Venue" = 'halle tony garnier' AND "Date" = 'june 15, 2009'