Utilize the input text as a context reference, choose the right relationship between Airbus and aircraft from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Regarding our fleet plan, we have reached agreement with Airbus to defer some of our 2020 and 2021 aircraft deliveries and corresponding predelivery deposits.

Answer: product_or_material_produced