Query: user: I need to know when my schedule is open.
assistant: What date do you want?
user: Saturday this week, please.
assistant: You have 3 openings. One of them is from 8 am to 11 am.
user: Okay. I need to schedule something for one pm.
assistant: What's the location?
user: 19920 Olivewood Street.
assistant: What do you want to call this event?
user: Apartment viewing at Pointe At Cupertino.

Intent: Calendar:AddEvent