You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I want to reach DFW, as I have a conference there. Can you please reserve me a flight from ATL?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Thank you, my planned travel dates are Jan 29th and Jan 31st.

ASSISTANT: Do you have any preferences?

USER: I would prefer to travel in a direct flight.

ASSISTANT: May I know your name please? Sorry, there is no direct flight available on your given dates.

USER: Robert Parker is my name.

ASSISTANT: Sorry for inconvenience.

USER: Ok, not a problem. Anyways, thank you.