You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you aid me to book a flight ticket from IAD to DCA?

ASSISTANT: Sure, please provide your itinerary dates.

USER: I planned my trip on the dates Apr 28 and Apr 30.

ASSISTANT: Which class do you prefer?

USER: I am happy with any class for my journey.

ASSISTANT: Do you prefer a direct flight?

USER: I prefer connecting flight for my journey.

ASSISTANT: May I know your name?

USER: Myself Katherine Rodriguez.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Southwest airlines with flight 1006 is providing a connecting flight and ticket costs you 100 in economy class.

USER: Please proceed.

ASSISTANT: Your ticket is confirmed Katherine Rodriguez.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.