Different actions depending on passed arguments: best pattern to choose

I find myself lot of times having this situation, where you want a method to do one thing or other depending what do you pass as arguments. Let mi give an example:

Given this class:

class SendMailJob 

    def initialize(action_to_perform, user)
        self.send(action_to_perform.to_s, args)
    end

    private
        def feedback(user)
            puts "We send feedback email #{user}"
        end

        def any_help(user)
            puts "We send any_help email #{user}"
        end
end

Then, depending on what I want to do, I call it passing a symbol with the "option":

SendMailJob.new(:feedback, @user)

Is there a better way to do this?