You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Robert Turner. Can you please help me in booking a flight ticket from DCA to ORD locations?

ASSISTANT: I am here to assist you on your concerns. May I know the dates of journey?

USER: My travelling dates are from 04/09 and 04/11.

ASSISTANT: There is a flight available with 1 connecting flight and the airfare is 100. Can I book it?

USER: please proceed with it.

ASSISTANT: Ok, the ticket is booked and the flight number is 1009.