You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I'm planning to meet my college friends staying at Washington, can you book a ticket from DFW to IAD?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my planned departure and return travel dates are 22nd and 24th of June.

ASSISTANT: Do you have any other specifications?

USER: Yes, I'm looking for single connected flight.

ASSISTANT: May I know your name please?

USER: Yes, my name is Nicole Thomas.

ASSISTANT: There is a flight with connection limit 1 and fare 400, shall I proceed for booking?

USER: That's fine, you can proceed for booking.

ASSISTANT: Your ticket is booked, flight number 1025 with Frontier Airlines.

USER: Thank you so much for your help.

ASSISTANT: Thank you for opting us.