You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am Anna Thompson want to visit Chicago, can you book a ticket from DCA to ORD?

ASSISTANT: Sure, may I know your planned dates?

USER: Sure, my travelling dates will be 04/16 and 04/18.

ASSISTANT: There is a flight available on your requested dates from Hawaiian airlines.

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket is booked with flight 1006.

USER: Thank you.

ASSISTANT: You are welcome.