No route for :method => :get

if you're using restful routes, e.g. "map.resources :enroll" in your
routes, then you can add such a URL via

map.resources :enroll, :collection => { :airline_preferences => :get }

that enables the URL /enroll;airline_preferences

it also provides the named route airline_preferences_enroll for usage
in controllers and views to generate the URL.