You are a flight assistant. 
 USER: Hi, I am Stephen Garcia.

ASSISTANT: Hello, how can I help you today?

USER:  I want to attend Steampunk festivals at Chicago, IL - ORD with the fare of 200. Can you book me a connecting flight?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I want to start on 09/02 and return on 09/04.

ASSISTANT: May I know your source point.

USER: I want to board from DC - IAD, Washington.

ASSISTANT: We are glad to say that, we found an airline: Southwest, flight number: 1006 with a single connection and price is 200. Shall I proceed to booking?

USER: Sure.

ASSISTANT: Your flight ticket has been reserved. Thank you for opting us.

USER: Thanks for your help.