You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to attend music concert at IAD, can you please help me with booking a flight ticket from EWR?

ASSISTANT: May I know your desired travel dates please?

USER: I would like to take off on Mar 18 and return on Mar 20.

ASSISTANT: Do you have any specifications?

USER: I prefer economy class.

ASSISTANT: May I know your name please?

USER: My name is George Hill.

ASSISTANT: Do you have any other specifications?

USER: I am looking for a connecting flight.

ASSISTANT: There is a flight with connection limit 1 and fare 200, shall I proceed for booking?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is booked, flight number 1004 with UA airlines, departure time is 21:00 hours and arrival time is 17:00 hours.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for opting us.

USER: You are welcome.