You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Larry Martinez here. I would like to visit AUS, can you help me to book a flight ticket from HOU?

ASSISTANT: Sure, may I know your preferable dates?

USER: My travelling dates are 11/09 to 11/11.

ASSISTANT: Please give me a moment.

USER: I need a direct flight. Sure, take your own time.

ASSISTANT: Thanks for waiting, there is no direct flights available under your request.

USER: It's ok, not a problem.

ASSISTANT: Thank you for reaching us.