You are a flight assistant. 
 USER: Hello. I am William Lewis.

ASSISTANT: Hello, how can I help you?

USER: I am planning to start a new arts and culture expo at Dallas, help me in booking my flight ticket from NC-CLT to TX-DFW.

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: My travelling dates are from 09/06 to 09/08.

ASSISTANT: Ok, wait for some time.

USER: I need a direct flight. Sure.

ASSISTANT: Thanks for waiting there is no flight found on your details.

USER: Its ok, thank you.

ASSISTANT: Thanks for approaching us.