user_query: add juice to walmart list
response_text: Alright, I added juice.
user_query: scratch that. Actually add juice to target list
response_text: I couldn't find that item on your list called "Target."
user_query: add it to my target list
response_text: What do you want to add?
User: Today I ate 400 calories for dinner
Parse: Log_nutrition ( culinary_quantity « 400 calories » meal « dinner » time « Today » )