user_query: make a list called road trip
response_text: OK, I made a list called "Road Trip".
user_query: make a list called target run
response_text: Alright, I made a list called "Target Run".
user_query: add tomatoes to the list called target run
response_text: Alright. Tomatoes on your list called "Target Run". Anything else?
user_query: add potatoes to the road trip
response_text: Sure. Potatoes. Anything else?
user_query: thats it
response_text: What do you want to add?
User: Use Stubhub to buy five tickets for the Adele concert.
Parse: BuyEventTickets ( event_performer « Adele » event_type « concert » provider « Stubhub » ticket_quantity « five » )