CREATE TABLE "museum" (
"Museum_ID" int,
"Name" text,
"Num_of_Staff" int,
"Open_Year" text,
PRIMARY KEY ("Museum_ID")
)

CREATE TABLE "visitor" (
"ID" int,
"Name" text,
"Level_of_membership" int,
"Age" int,
PRIMARY KEY ("ID")
)

CREATE TABLE "visit" (
"Museum_ID" int,
"visitor_ID" text,
"Num_of_Ticket" int,
"Total_spent" real,
PRIMARY KEY ("Museum_ID","visitor_ID"),
FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"),
FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID")
)
SELECT t1.name ,  t1.age FROM visitor AS t1 JOIN visit AS t2 ON t1.id  =  t2.visitor_id ORDER BY t2.num_of_ticket DESC LIMIT 1
Find the name and age of the visitor who bought the most tickets at once.