CREATE TABLE table_14035132_3 (original_air_date VARCHAR(255), storyboarded_by VARCHAR(255), no_in_series VARCHAR(255))
On what date did the episode with a series number 31, with a story written by William Reiss, air for the first time? 
    
SQL: SELECT original_air_date FROM table_14035132_3 WHERE storyboarded_by = "William Reiss" AND no_in_series = "31"