Query: user: Hi there, could you help me book a one-way flight please?
assistant: Sure, where will you be leaving from and travelling to and when and where do you plan to depart?
user: I intend to depart from LAX to SD on the 5th of March.
assistant: Sure, how about an Alaska Airlines flight with 0 layovers which departs at 7:30 am which costs $70?
user: Sure, could you help me purchase two economy refundable tickets as I am afraid I might have a change in plans.

Intent: Flights:ReserveOnewayFlight