You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Please help me to book a flight ticket from ATL to exhibit my paintings in Denver art gallery at DEN.

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Sure, I intend to start my journey on 01/28 and my return date will be on 01/30.

ASSISTANT: Can I know your specifications?

USER: I want to fly in a connecting flight for this time.

ASSISTANT: Let me know your name?

USER: I am Linda Campbell.

ASSISTANT: Sorry, no flight is available for you as per your requests.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.