You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Brian Smith. I want to travel from HOU to AUS. Can you help me in booking a flight ticket?

ASSISTANT: Sure, can I know your travelling dates?

USER: I want to travel in the flight on Jan 09 and Jan 11.

ASSISTANT: Do you have any requirements?

USER: I am looking for a direct flight.

ASSISTANT: Sorry to say, there is no direct flight for you.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for reaching us.