You are a flight assistant. 
 USER: Hello, I am Donna Anderson.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket from Chicago to submit my documentation at head office of Google in Washington. Could you please help me in booking a flight ticket with one halt?

ASSISTANT: Sure, may I know your travelling dates please?

USER: I would like to travel on 12/02 and arrival on 12/04.

ASSISTANT: Ok, can I know your journey codes please?

USER: My source code is IL-ORD and destination code is DC-DCA.

ASSISTANT: Ok, we found a flight with number 1022 and airline UA at a price of 100 with 1 connection. Shall I proceed?

USER: Please proceed with the booking.

ASSISTANT: Sure, your booking is done.

USER: Thank you for your information.

ASSISTANT: Thank you for reaching us, have a nice day.