You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me to book a flight ticket from DFW to AUS?

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

USER: Sure, my planned travel dates are Oct 3 and Oct 5 respectively.

ASSISTANT: Can you please mention your name?

USER: Myself Sandra Hill.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a direct flight.

ASSISTANT: Unfortunately we did not find any flight on your route according to your given dates.

USER: That's fine, no issue. Anyway thank you for checking.

ASSISTANT: Thank you for choosing us.