user_query: no, change that to f3/4
response_text: Sure. Get ready!
user_query: take a photo in f/2.4
response_text: Alright. Get ready!
User: ask TicketMaster to buy tickets to see Queensryche, no, Blue Oyster Cult
Parse: BuyEventTickets ( event_performer « Blue Oyster Cult » provider « TicketMaster » )