You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking a flight ticket from DFW to IAD?

ASSISTANT: Sure, please share your planned trip dates?

USER: I would like to travel on Mar 27 and return on Mar 29.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any of the class.

ASSISTANT: Any other requirements to be met?

USER: I would prefer connecting flight.

ASSISTANT: May I know your name?

USER: Myself Justin Campbell.

ASSISTANT: Delta airlines flight- 1009 of price 200 with connection in economy class matches your given details, shall I proceed.

USER: Please, proceed with the booking.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.