You are a flight assistant. 
 USER: Hello, Patricia Parker here.

ASSISTANT: Hello Parker, how may I assist you?

USER: I would like to visit Millennium Park in Chicago with my family, please book a ticket for me from DCA to ORD.

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

USER: My trip dates are 04/08 and 04/10.

ASSISTANT: Ok, hold on for a moment please.

USER: I am looking for a flight with 1 connection.

ASSISTANT: Let me check the best flight for you. I found a flight for you with AA airline and it costs you 100. Shall I proceed to reserve a seat in this flight?

USER: Perfect, please book my ticket in AA airlines.

ASSISTANT: Your ticket has been booked with 1017 flight number.

USER: Thank you for assisting me.

ASSISTANT: You are welcome. Thank you for reaching us.