You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Gregory Clark, I need to book a ticket from IAH to AUS.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are Mar 16 to Mar 18.

ASSISTANT: Do you need a halt in between your journey?

USER: I need one stop over, please check for that.

ASSISTANT: Do you have any airline preference?

USER: I am comfortable with any airline.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for reaching us.