Using auditory feedback with Alexa?

I am working on an Alexa Skill, and we are conducting several interactions that may require some form of feedback while waiting or after a success.

I've not really seen any examples of whether or not to use auditory feedback with Alexa. Do users expect to hear dings and beeps? Ideally, I would like to utilize the ring color to indicate a success, but we're currently not able to do that.

Also, as a side note, does anyone know of a place to go for UX sound clips?