Query: user: Please search for Economy flights on the 10th of this month.
assistant: From where to where? When are you planning to return?
user: I want to fly from San Diego to Portland. I will return on the 12th of this month.
assistant: There is an Alaska Airlines flight to Portland at 3:20 pm. The return flights leaves at 5:40 pm. The ticket is $171.
user: What other flights are available? I want to travel to SF.
assistant: There is an American Airlines flight that leaves at 9:20 pm. The return flight leaves at 12:15 pm. This flight is $133.
user: Anything else?
assistant: There is a Delta Airlines flight at 7:55 pm. The return flight leaves at 9:45 pm. The ticket is $110.
user: Which airport does it go to?
assistant: The flight is to SFO International Airport.
user: The last one sounds good. I have another trip coming up. Can you look for one way flights?

Intent: Flights:SearchOnewayFlight