Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_89 (episode_number INTEGER, guest_host VARCHAR)
### Question:
What is the highest episode number in which Jamie Oliver guest-hosted?
### Answer:
SELECT MAX(episode_number) FROM table_name_89 WHERE guest_host = "jamie oliver"