You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Please help me out in booking the ticket from IAD to ATL.

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates will be Jan 14 to Jan 16.

ASSISTANT: Do you have any connection limit?

USER: I need a connected flight.

ASSISTANT: Any other requirements to be met?

USER: No.

ASSISTANT: May I know your name?

USER: Donald White is my name.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.