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 artist ( name VARCHAR, artist_id VARCHAR )
TABLE: CREATE TABLE exhibition ( ticket_price INTEGER )

### Question ###
What is the theme and artist name for the exhibition with a ticket price higher than the average?

### Accurate SQL ###

SELECT T1.theme, T2.name FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id = T2.artist_id WHERE T1.ticket_price > (SELECT AVG(ticket_price) FROM exhibition)