You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am planning to book a ticker from HOU to AUS. Can you please help me out?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I would like to travel on Oct 14 and return back on Oct 16.

ASSISTANT: Can I know your name please?

USER: My name is Catherine Jackson.

ASSISTANT: Can I know your connection limit?

USER: I am looking for a direct flight.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found in our database.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for reaching us.