You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket from ATL to AUS, can you please help me for booking?

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

USER: I would like to travel on 04/11 to return on 04/13.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I need a depart time in the afternoon.

ASSISTANT: May I know your good name?

USER: Nancy Williams here.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.