You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to attend music concert at DCA, can you please help me with booking a flight ticket from DFW?

ASSISTANT: Please provide your trip dates.

USER: I would like to take off on Oct 26 and return ton Oct 28.

ASSISTANT: Do you need any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you need any other specifications?

USER: I don't have any other specification.

ASSISTANT: May I know your name?

USER: My name is Ryan Harris.

ASSISTANT: American Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 20:00 hours and arrives at 12:00 hours, shall I book your ticket in this flight?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is confirmed in flight 1007.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.