You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to travel from AUS to DFW. Can you book a flight ticket for me?

ASSISTANT: Your travelling dates please?

USER: I want to travel in the flight on Jan 13 and Jan 15.

ASSISTANT: Do you have any specifications?

USER: I am looking for a direct flight.

ASSISTANT: May I know your name please?

USER: Justin Scott.

ASSISTANT: I am sorry no flights found on your route.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for choosing us.