You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I assist you today?

USER: I am Carol Mitchell. I am planning to visit the Freedom Park in Charlotte, so please help me in booking a flight ticket from Chicago.

ASSISTANT: Sure, I would be happy to assist you. Can you please let me know your journey locations?

USER: My airport codes are IL - ORD, NC - CLT.

ASSISTANT: May I know when you are wiling to travel?

USER: I want to fly on 08/03 and return on 08/05.

ASSISTANT: Do you need any connecting flight?

USER: I need a direct flight.

ASSISTANT: Unfortunately, there is no flight found with your given information.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.