Query: user: I am traveling to Chicago soon. Can you please assist me in booking a one-way flight ticket?
assistant: What city will you be leaving from?
user: There will be two people in my group and we will be leaving from London, England.
assistant: What date do you plan on leaving? Do you have an airline you would prefer? May I suggest Alaska Airlines or Southwest Airlines?
user: We will be leaving later today. I'd really prefer Delta Airlines, please.

Intent: Flights:ReserveOnewayFlight