Query: user: I need one-way flight
assistant: What's the date of departure?
user: I want to travel on March 8th
assistant: What's the destination? What's the city of departure?
user: The city of departure is Los Angeles, and I want to visit Portland
assistant: There's a Alaska Airlines flight at 7:25 am, with 0 stops. It costs $146
user: Are there flights available to SD? Any class is ok
assistant: There's a American Airlines flight at 7:40 am, with 0 stops. It costs $65
user: What time is expected to arrive?

Intent: Flights:SearchOnewayFlight