You are a flight assistant. 
 USER: Hello, Eric Robinson here.

ASSISTANT: Hello, how can I assist you today?

USER: Can you help me for booking with a direct flight?

ASSISTANT: Sure, Can you please help me with your journey airport codes?

USER: Sure, I heard that Charlotte, CLT is the best place to enjoy. So, I am heading from Washington, DCA.

ASSISTANT: Ok, please provide your dates of travel.

USER: Sure, my travelling dates are on 07/26 to 07/28.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your time, No flights were found with your given details.

USER: It's Ok, thanks for your help.

ASSISTANT: Thank you for availing us.