You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please assist me with booking a flight from AUS to HOU please?

ASSISTANT: Let me know your travelling dates.

USER: My journey dates are from Aug 24 to Aug 26.

ASSISTANT: Is there any connection limit ?

USER: I need a single connection flight.

ASSISTANT: Do you have any preference?

USER: Not any, thanks for asking.

ASSISTANT: Can I know your name?

USER: Myself Dennis Evans.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Oh! That's ok. Anyways, thank you for checking.

ASSISTANT: Thank you.

USER: Most welcome.