You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: David Phillips here. I want to travel from DCA to ATL for attending a Seminar. Can you please help me for booking the flight ticket?

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

USER: My travelling dates are from 05/14 to 05/16.

ASSISTANT: Ok, wait a moment please.

USER: Make sure my connections limit is 1.

ASSISTANT: There is a connecting flight with price 200, can I book it?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your ticket has been booked with flight number 1005.

USER: Thanks for helping me.

ASSISTANT: Thank you for approaching us.