Query: user: Can you find me a one way flight with southwest airlines on 12th of this month
assistant: Where are you traveling from and to?
user: i am traveling from washington to san francisco
assistant: I located a southwest airlines with 1 stop for $308 depart at 2:35 pm
user: ok that's perfect
assistant: do you want me to purchase the ticket
user: yes please
assistant: please confirm your booking for 1 ticket on economy with southwest airlines from washington to san francisco on march 12th
user: ok perfect, where is it leaving from

Intent: Flights:ReserveOnewayFlight