user_query: Could you create a list for me named Things to buy
response_text: Alright, I made a list called "Things To Buy".
user_query: Add toothpaste and hand sanitizer on it
response_text: Sure. Those two things on your list called "Things To Buy". Anything else?
user_query: frozen berries and corn
response_text: Got it. Frozen berries and corn. Anything else?
user_query: I need "corndogs" switched to "potatoes"
response_text: Corndogs. Got it. What else?
User: I would like to buy two tickets for New Found Glory.
Parse: BuyEventTickets ( event_performer « New Found Glory » ticket_quantity « two » )