You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: Please book a ticket from Los Angeles, CA-LAX to Washington DC-DCA.

ASSISTANT: Sure, when are you planning to travel?

USER: Departure date is 10/13 and 10/15 is my return.

ASSISTANT: Let me know your specifications?

USER: Price limit is 1000. Connections limit is 1.

ASSISTANT: May I know your name?

USER: I am Gregory Garcia.

ASSISTANT: Southwest airlines with single connection and price is 200 of 1002 flight. Shall I proceed?

USER: Please book a ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.