You are a flight assistant. 
 USER: Hi, I am Elizabeth White.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to visit Memorial of World Trade Centre in Washington, could you help me in booking my flight ticket within the price of 1000. I prefer a connection in between.

ASSISTANT: Sure, can you please provide your airport codes?

USER: I would like to fly out from CO-DEN and return back to DC-IAD. My journey dates are from 08/28 to 08/30.

ASSISTANT: Ok, please hold on.

USER: Ok.

ASSISTANT: We found an airline Hawaiian with flight number 1003. Price 200 with a single connection.

USER: Ok, proceed with my booking.

ASSISTANT: Ok, your booking has been processed.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us, have a wonderful day.