You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Katherine Anderson.

ASSISTANT: How may I render you today?

USER: I am planning to attend a live concert at Chicago, can you help me to book a flight ticket within the fare limit 1000?

ASSISTANT: Sure, kindly assign your travel dates?

USER: I will depart on 07/02 and my return date will be on 07/04.

ASSISTANT: Could you please mention your airport codes please?

USER: I need to start from Charlotte, NC-CLT to reach Chicago, IL-ORD.

ASSISTANT: Ok, are you looking for connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Please wait, I will revert to you.

USER: Ok.

ASSISTANT: Thanks for waiting, I found a connecting flight from Delta airline of price 100 and flight number 1009. Shall I proceed to book?

USER: Ok, you can book the ticket with this airline.

ASSISTANT: Your flight ticket has been processed.

USER: Thank you for being my helping hand in booking.

ASSISTANT: Thanks for using our service.