ROY SWEAZY จองห้องพักไว้กี่ครั้งแล้ว ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
How many times does ROY SWEAZY has reserved a room.It is not neccessary to use all the tables.
 rooms:  roomid [ text]  roomname [ text]  beds [ number]  bedtype [ text]  maxoccupancy [ number]  baseprice [ number]  decor [ text] 
SELECT COUNT(*) FROM reservations WHERE firstname = "ROY" AND lastname = "SWEAZY"