Query: user: Can you please find some interesting attractions for me to visit?
assistant: Sure, but first tell me in which area should I search.
user: Please search in London, England.
assistant: I found 10 attractions matching your criteria out of which I think you should see a great Historical Landmark, the 30 St Mary Axe (The Gherkin)
user: Do you know if they charge entrance?
assistant: No, entrance is free to this attraction.
user: OK, sounds perfect!
assistant: Is there anything else I could do for you?
user: Yes, please find me a house to stay there, for two persons, rated at least 4.0.
assistant: I found 10 houses matching your criteria, out of which I recommend 1 Addington Street rated at 4.0.
user: Anything else, rated at least 3.9?
assistant: There's also 1 Baffin Way, rated at 3.9.
user: This one sounds perfect. Now let's find me a round trip flight to there.
assistant: OK, but first tell me from where will you be departing?
user: I'm travelling from Washington.
assistant: When do you plan on travelling?
user: I'd like to travel on the 1st of March.
assistant: Perfect, now tell me when do you plan to return.
user: I'd like to return on March 12th. I forgot to mention that I am not particular about ticket class.

Intent: Flights:SearchRoundtripFlights