You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am looking to book a flight ticket from IAD to EWR. Can you help me for that?

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

USER: My travelling dates are Dec 18 and Dec 20.

ASSISTANT: Can you please share your name for documentation purpose?

USER: My name is Ashley Campbell.

ASSISTANT: Is there any connection preference?

USER: I prefer to book a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

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-1004.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.