You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

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

USER: My travelling dates are Dec 08 and Dec 10.

ASSISTANT: Can you please share your connection limit?

USER: I prefer to book a singe connecting flight.

ASSISTANT: Is there any class preference?

USER: Any class is fine for me.

ASSISTANT: May I know your name please?

USER: My name is Jack Anderson.

ASSISTANT: United 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-1020.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.