user_query: Erase all entries on my grocery shopping list
response_text: It looks like that list is already empty.
user_query: Erase all entries on my grocery list
response_text: You have two lists with similar names. Which one do you want to clear?
user_query: create a grocery list
response_text: Sorry, it looks like you already have a list with that name. Do you still want to make a new one?
User: Get pizza from Dominos I mean Pizza Hut.
Parse: Get_product ( product « pizza » product_source « Pizza Hut » )