You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best I can aid you today?

USER: Stephanie Carter here. I am a singer, I have to take part in a contest at Dallas, so please book my ticket from Washington DC.

ASSISTANT: Sure, we are mirthful to help you.

USER: Ok.

ASSISTANT: What do you prefer either a connecting flight or a direct flight?

USER: I prefer connecting flight.

ASSISTANT: Can you please forward your airport codes?

USER: My genesis and terminus airport codes are DCA and DFW.

ASSISTANT: May I know on which dates you are willing to travel?

USER: My itinerary dates are Sept 9 and Sept 11.

ASSISTANT: Is there any class preference?

USER: No, I want to depart in the afternoon.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for your time, we found a connecting flight in 1021 American Airlines with a fare of 100. Shall I proceed in economy class?

USER: Please book my ticket.

ASSISTANT: Sure, your ticket has been booked and depart time is 15:00 PM and return time is 14:00 PM.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.