You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you now?

USER: I would like to book my ticket from DFW to AUS. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, I am here to help you. May I know your journey dates, please?

USER: My journey dates are from Jan 05 to Jan 07.

ASSISTANT: Do you have any connection limit for your journey?

USER: I need a direct flight in my journey.

ASSISTANT: May I know about your other specifications, if any?

USER: I would prefer not to fly a low-cost airline.

ASSISTANT: Let me know your name to proceed.

USER: Myself Emily Perez.

ASSISTANT: Do you have any more requirements?

USER: No, thank's for asking.

ASSISTANT: Sorry, there are no flights running on your routes as per your specifications.

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

ASSISTANT: Thank you for reaching us.