You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me in booking my flight ticket from IAH to HOU?

ASSISTANT: May I know your travel dates?

USER: Sure, my travelling dates are from 09/12 to 09/14.

ASSISTANT: Do you have any connecting limit preferences?

USER: I need a single connecting flight.

ASSISTANT: Is there any other concern?

USER: I would like to prefer business class.

ASSISTANT: May I know your name please?

USER: Myself Helen Evans.

ASSISTANT: Spirit Airlines is providing the connecting flight and the fare of 600.

USER: Please proceed with the booking.

ASSISTANT: Your reservation is confirmed for the flight 1004.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.