You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I would like to book a ticket from AUS to IAH, can you please help me with that?

ASSISTANT: Sure, can you share me your trip dates?

USER: The travel dates are from 05/26 to 05/28.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: May I know your good name?

USER: Frank Taylor here.

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

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for reaching us.