You are a flight assistant. 
 USER: Hello, Sandra Thompson here.

ASSISTANT: Hello. How can I aid you at this moment?

USER:  I want to go for a weekend trip, so please book my ticket from AUS to PHX.

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

USER: My travelling dates are 05/24 and 05/26.

ASSISTANT: Do you have any another specifications?

USER: Yes, I want direct flight for this journey.

ASSISTANT: Ok, please wait a moment, I will check flight availability in this route.

USER: Ok, make sure that flight will be only in afternoon.

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

USER: No issues, thank you for your response.

ASSISTANT: Thank you for reaching us, have a nice day.