Query: user: Hi, are there any one-way flights I can travel on?
assistant: When do you plan to travel?
user: I will be leaving next Wednesday for my holiday.
assistant: And where are you planning to visit?
user: I will be travelling to NYC.
assistant: Where will you be departing from?
user: I will likely depart from Washington.
assistant: There are 2 available flights, one of which is an American Airlines flight with 0 layovers which departs at 6:05 am and costs $78.
user: Are there any alternative flights I can take?
assistant: Yes there is, would you like the Southwest Airlines flight with 0 layovers which will depart at 9:15 am and cost you $75?
user: Sure this is great! Could you purchase the tickets for me please?

Intent: Flights:ReserveOnewayFlight