user_query: the grocery list
response_text: OK, I added milk to the list with cheese pasta and eggs.
user_query: add milk to the list with cheese pasta and eggs on it
response_text: Got it. Which list do you want to add to?
User: Buy 2 tickets on umm Ticketmaster for the Kid's Museum in uhh in St. Joseph.
Parse: BuyEventTickets ( event_location « St. Joseph » event_performance « Kid's Museum » provider « Ticketmaster » ticket_quantity « 2 » )