request
/ri-ˈkwest/
noun
the act or an instance of asking for something
something asked for
the condition or fact of being requested
verb
to make a request to or of
to ask as a favor or privilege
to ask (a person) to come or go to a thing or place
requested her to write a paper
idiom
by asking for something usually in a formal way
Catalogs are available by/on/upon request.