Query: user: I need to find a dentist.
assistant: Where should I search?
user: Near Mountain View.
assistant: I've found 10 dentists. How about Apple Dental Practice in Mountain View?
user: What's their phone number? Do they do cosmetic dentistry?
assistant: Their number is 650-336-1313. They do not do cosmetic work.
user: Yes, that works.
assistant: Shall I book an appointment?
user: Yes.
assistant: What time and date would you like to book?
user: Please find me an appointment on the 10th of this month. Preferably at half past 1 in the afternoon.
assistant: Please confirm your appointment details: appointment with Apple Dental Practice at 1:30 pm, on March 10th.
user: Actually, book it on the 11th at half past 3 in the afternoon.
assistant: Please confirm: you'd like to change the appointment to 3:30 pm, on March 11th.
user: Yes. What is the address?
assistant: They are located at 1040 Grant Road #103. Sorry, I couldn't book that appointment. Would an appointment at Apple Dental Practice on March 11th at 4 pm work instead?
user: Yes.

Intent: Services:BookAppointment