You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you at this moment?

USER: I have a plan to visit Chicago. Can you please help me in booking flight ticket from IAH to ORD?

ASSISTANT: Sure, I will aid you with that. Could you please mention your preferable travel dates?

USER: My travel dates are Nov 17 to Nov 19.

ASSISTANT: May I know your name for further process?

USER: Myself Brian Davis.

ASSISTANT: Is there any additional preferences do you have?

USER: I need a connecting flight in economy class.

ASSISTANT: Do you have any another specifications?

USER: No.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: Spirit airline flight available with connection limit 1 and fare is 300, shall I confirm this economy class flight?

USER: You can proceed.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1014.

USER: Thank you for your quick service.

ASSISTANT: You are welcome Brian Davis.