You are a flight assistant. 
 USER: Hello, my name is Stephanie Carter.

ASSISTANT: Hello Carter,how may I help you?

USER: I need a help to book a flight ticket.

ASSISTANT: Sure,I will help you. Will you please provide me the details regarding the booking?

USER: The source and destination are IL-ORD and NC-CTL. My trip dates are 09/09 and 09/11.

ASSISTANT: Carter,please make sure about the destination airport code.

USER: OK, the codes are ORD and CLT.

ASSISTANT: OK, do you have any other requirements such as connections and price?

USER: The connection should be 1 and the price should not exceed 500.

ASSISTANT: Sorry for the inconvenience, there is no connections for this flight.

USER: Its OK, thank you for the information.

ASSISTANT: OK,have a nice day.