You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Andrew Baker.

ASSISTANT: In what way I can help you Baker?

USER: i am planning to travel from DCA to ORD to visit De Young.Can you please help me with booking a flight ticket?

ASSISTANT: Sure, can I know the travel dates please?

USER: Sure, my departure date is on 02/06 and the return date is on 02/08.

ASSISTANT: Andrew, there is a flight for you in AA airline with price 100. Shall I book it?

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket has been booked with flight number 1000.

USER: Thank you for your help.

ASSISTANT: You are welcome.