Query: user: Can you search for some United Airlines flights for me?
assistant: Okay. First, where will you be leaving from and where do you want to visit?
user: I'm leaving from Seattle and traveling to Portland, OR.
assistant: Got it. When are you coming back?
user: I'm leaving on March 7th, and want to come back on March 11th.

Intent: Flights:SearchRoundtripFlights