You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I aid you?

USER: I am Nicole Allen ,I want to exhibit my arts in an exhibition at Charlotte, NC - CLT. Can you help me with booking the flight ticket?

ASSISTANT: Sure,Can you provide your travelling dates?

USER: I want to fly on 01/08 and return on 01/10.

ASSISTANT: Let me know your source code?

USER: DC - DCA is my source code. Make sure that I need a direct flight with price not more than 1000.

ASSISTANT: There is no direct flight available.

USER: Ok, not an issue. Thanks for your information.

ASSISTANT: Thank you.