Query: user: I need to see a doctor. Find me one in Oakland.
assistant: What kind of doctor do you need to see?
user: An Ophthalmologist.
assistant: I found an Ophthalmologist for you. Bay Area Retina Associates is in Oakland.
user: That's good, when am I free on next Tuesday.
assistant: On March 5th, you are free from 8 am to 12 pm.
user: Good, book me an appointment for 11:00 am that day.

Intent: Calendar:GetAvailableTime