Tables

Airplane
	id :integer
	name :string
	seat_row :integer
	seat_column :string

User
	id :integer
	name :string
	email :string
	admin :boolean
	password_digest	:string

Flight
	id :integer
	flight_number :integer
	origin :string
	destination :string
	date :datetime
	airplane_id :integer

Reservation
	id :integer
	user_id	:integer
	flight_id :integer