How does an investigator produce extinction in classical conditioning?

Has many food examplesUnconditioned StimulusA stimulus that elicits a reflexive response without learningunConditioned responseA reflexive response elicited by a stimulus without learningUnconditioned responseAn unconditioned stimulus leads to _Conditioned responseA conditioned stimulus leads to _the Conditioned Stimulus no longer elicits the Conditioned Response / The Conditioned Response will disappear If I continually present the Conditioned Stimulus with no Unconditioned Stimulus, what will happen?