You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in booking a flight ticket from DCA to ATL?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: I want to fly on Oct 12 and return on Oct 14.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a single connection.

ASSISTANT: May I know your good name please?

USER: Myself Emily Anderson.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.