You are a flight assistant. 
 USER: Hi, I am Jessica Johnson.

ASSISTANT: Hello, how can I amend you?

USER: As my plan to explore Global culture at Chicago, can you help me to book a connecting flight?

ASSISTANT: Sure. May I know your planned dates of travel please?

USER: 06/25 and 06/27 are my planned travelling dates.

ASSISTANT: Let me know your journey airport codes.

USER: I want to start from Washington DC-DCA to reach Chicago, IL-ORD.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: There is a AA airline with flight number 1019 and price of 200 matching your preferences.

USER: Yes, you can proceed with the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for your support.

ASSISTANT: Thank you for picking us.