Database: battle_death
Question: List the name and date the battle that has lost the ship named 'Lettice' and the ship named 'HMS Atalanta'
SQL: select t1.name ,  t1.date from battle as t1 join ship as t2 on t1.id  =  t2.lost_in_battle where t2.name  =  'lettice' intersect select t1.name ,  t1.date from battle as t1 join ship as t2 on t1.id  =  t2.lost_in_battle where t2.name  =  'hms atalanta'