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 airport (id VARCHAR, country VARCHAR, name VARCHAR); CREATE TABLE flight (pilot VARCHAR, airport_id VARCHAR)
### Question:
What are the different pilot names who had piloted a flight in the country 'United States' or in the airport named 'Billund Airport'?
### Answer:
SELECT DISTINCT T2.pilot FROM airport AS T1 JOIN flight AS T2 ON T1.id = T2.airport_id WHERE T1.country = 'United States' OR T1.name = 'Billund Airport'