You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to participate In basic training course. in my university can you please help me out booking a flight ticket?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: My airport codes are from Atlanta, GA-ATL. to Chicago, IL-ORD.

ASSISTANT: Please share your planned journey dates.

USER: I am planning to travel on 07/07 to 07/09.

ASSISTANT: Do you want connecting flight?

USER: Yes, I need a break in between my journey.

ASSISTANT: May I know your good name please?

USER: I am Anna Hall.

ASSISTANT: Let me know your price limit.

USER: I can pay up to 500.

ASSISTANT: Sorry, no flights found with your given details.

USER: No problem,thank you for the information.

ASSISTANT: Thank you for opting us.