system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
Why do children sometimes leave milk and cookies out on Christmas Eve?


assistant
Leaving milk and cookies out the night before Christmas is a tradition based on the assumption that Santa Clause will come down the chimney overnight to deliver presents and he might enjoy a snack.