CREATE TABLE table_70184 ("Week" FLOAT, "Issue Date" TEXT, "Artist" TEXT, "Single" TEXT, "Download" TEXT, "Title" TEXT)

What's the Issue Date for an Eric Prydz song with a no available Download information?
SELECT "Issue Date" FROM table_70184 WHERE "Download" = 'no available' AND "Artist" = 'eric prydz'
SELECT "Issue Date" FROM "table_70184" WHERE "Artist" = 'eric prydz' AND "Download" = 'no available'