Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE visitor (name VARCHAR, age VARCHAR, id VARCHAR)
TABLE: CREATE TABLE visit (visitor_id VARCHAR, num_of_ticket VARCHAR)

### Question ###
Find the name and age of the visitor who bought the most tickets at once.

### Accurate SQL ###

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