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 Reservations (Room VARCHAR); CREATE TABLE Rooms (decor VARCHAR, RoomId VARCHAR)
### Question:
What kind of decor has the least number of reservations?
### Answer:
SELECT T2.decor FROM Reservations AS T1 JOIN Rooms AS T2 ON T1.Room = T2.RoomId GROUP BY T2.decor ORDER BY COUNT(T2.decor) LIMIT 1