You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a ticket from PHX to AUS, can you help me?

ASSISTANT: Sure, I am here to help you out.  Please provide me your trip dates.

USER: My travel dates are Oct 07 and 09.

ASSISTANT: May I know your name to proceed further?

USER: I am Larry Evans.

ASSISTANT: Here is a direct flight in economy class with Frontier airlines. Can I proceed with it?

USER: I want to depart in the afternoon.

ASSISTANT: Sorry Larry Evans, there is no flight as per your mentioned travel dates.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for reaching us, have a safe flight.