You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you help me to book a flight ticket from IAD to EWR?

ASSISTANT: Can I have your journey dates?

USER: My travel dates are 19 to 21 of June.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Nancy Allen.

ASSISTANT: Southwest Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 19:00 hours and arrives at 10:00 hours, shall I book your ticket in this flight?

USER: Please proceed to booking.

ASSISTANT: Your ticket is confirmed in flight 1028.

USER: Thank you for helping me.

ASSISTANT: Thank you.