user_query: tell me the items on the first list
response_text: Sorry, which list do you want to know about? For example, you can say "the first one."
user_query: what are the two things on the first list?
response_text: You have eleven lists. Which one do you want to know about?
user_query: the first one
response_text: You have one thing on that list.
user_query: show me my first list
response_text: You have eleven lists. Which one do you want to know about?
User: Let me get tickets for Cuco in Dallas on Sept. 2nd.
Parse: BuyEventTickets ( event_location « Dallas » event_performer « Cuco » event_time « Sept. 2nd » )