I think you should ask them questions that will elicit the exact information you’re trying to get. So for example, like bhargav1195 said, asking questions like

I think you should ask them questions that will elicit the exact information you’re trying to get. So for example, like bhargav1195 said, asking questions like “what have you typically done to do xyz (i.e. the goal you want the feature to achieve)?”, “what’s been the most difficult part for you when you’re trying to accomplish xyz?” etc. Those will give you better information to work with because users don’t always know what they want. You find what they truly need hidden in between the lines. briefcomment’s suggestion also sounds good but I’d be curious to see how that works out if you ever try it out because I don’t think I’ve seen it in practice either