You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me to book flight ticket from IAD to DCA?

ASSISTANT: Sure, can I have your planned travel dates please?

USER: My planned dates are 30 Jan and Feb 01.

ASSISTANT: May I know your name please for booking purpose?

USER: Scott White here.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: May I know which class do you prefer for your journey?

USER: I prefer to travel in economy class.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: I found an economy class in Frontier airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Ok, you can book.

ASSISTANT: Ok, your booking is confirmed with flight number 1005.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us, have a nice day.