You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for today?

USER: Help me in booking my flight ticket.

ASSISTANT: OK, please let me know the airport codes along with travelling dates?

USER: I would like to travel from TX - DFW on 03/21 and I would like to catch a return flight in DC - IAD on 03/23.

ASSISTANT: OK, do you have any connection limit?

USER: Yes, I want 1 connected flight.

ASSISTANT: OK, happy to inform you that I found a flight which satisfies all your requirements. Would you like to confirm your ticket?

USER: Can I know how much that flight ticket costs?

ASSISTANT: The flight ticket is available at price 200.

USER: OK book that flight ticket on my name.

ASSISTANT: To book a flight ticket I need to know your name, can you please provide your name?

USER: I'm Gregory Clark.

ASSISTANT: OK, your ticket has been confirmed with Delta airline. The flight number is 1019.

USER: OK. Thank you so much for booking.

ASSISTANT: Have a safe journey Gregory.

USER: Thank you.