You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I need to book a flight ticket from DCA to ORD, Can you please help me for booking?

ASSISTANT: Sure, I am here to help you out. May I know your travel dates please?

USER: I would like to travel on 01/20 to return on 01/22.

ASSISTANT: Can you please share your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name please?

USER: Timothy Carter here.

ASSISTANT: Frontier airlines is providing connecting flight for you with the fare of 100 in economy class, shall I proceed with the booking?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket is booked with the flight-1019.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.