You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me in booking flight ticket from IAD to ORD?

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

USER: I will start my journey on June 30 and return on July 02.

ASSISTANT: Can you please share your connection preference?

USER: I prefer to travel in connecting flight.

ASSISTANT: Can I have your name please?

USER: George Lopez here.

ASSISTANT: Do you have any other specifications?

USER: No.

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

USER: You can proceed.

ASSISTANT: Your ticket is booked with the flight-1029.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.