You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Michelle Clark here.

ASSISTANT: How can I aid you today?

USER: I'm planning to visit my head office, can you book a ticket from IAH to AUS?

ASSISTANT: Sure, I will aid you with that. Can you please mention your preferable travel dates?

USER: Sure, my planned departure and return travel dates are 9th and 11th of February.

ASSISTANT: Do you have any preferences regarding timings of your journey?

USER: Yes, I want to return on the evening.

ASSISTANT: Do you have any another specifications?

USER: I need a direct flight.

ASSISTANT: Ok, please hold on a moment.

USER: Sue, I'll be online.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for reaching us.