You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me to book a flight ticket from ATL to CLT?

ASSISTANT: Sure, may I know the planned travel dates?

USER: My planned travel dates are May 21 and May 23.

ASSISTANT: Do you have any time concerns?

USER: I would like to start my journey for the afternoon flight.

ASSISTANT: Is there any connection limit?

USER: Please look for a connecting flight.

ASSISTANT: Please provide me the name.

USER: Myself Gregory Hill.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: That's fine, not an issue. Anyway thank you for checking.

ASSISTANT: Thank you for reaching us.