You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I am looking for a flight from AUS to DFW, can you help me in booking?

ASSISTANT: Ok, may I know your desired dates for this trip?

USER: Sure, my planned travel dates are Nov 16 and Nov 18.

ASSISTANT: May I know you your name to proceed further?

USER: Myself Sarah Adams.

ASSISTANT: May I know your connection preference?

USER: Please look for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sarah Adams, currently there are no flights available on your requested route.

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

ASSISTANT: Thank you for choosing us. Have a nice day.