This is the type of thing you learn to say when you're dealing with a slot filling algorithm that allows for overspecification. By putting it in one utterance,

This is the type of thing you learn to say when you're dealing with a slot filling algorithm that allows for overspecification. By putting it in one utterance, you avoid it saying coming back and saying "Where do you want a reservation?" "When do you want your reservations?" "How many people are in your party?"