You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Could you please help me with booking a flight ticket from ATL to DEN?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My planned journey dates are from Aug 26 to Aug 28.

ASSISTANT: Are you looking for any preferred connections?

USER: I am looking for a single connecting flight in my journey.

ASSISTANT: Do you have any other specifications to be met?

USER: No, I din't have any other specifications.

ASSISTANT: May I know your name to proceed further?

USER: Sure, myself Ashley Gonzalez.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: Not a problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.