You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you for the day?

USER: I want to book a direct flight with the name of Katherine Taylor to visit Phoenix. Can you please help me in booking a flight ticket from TX - AUS?

ASSISTANT: Sure, we are here to help you. May I know your destination code?

USER: My destination code is to AZ - PHX.

ASSISTANT: Could please share your travel dates to me?

USER: I will start my journey on 03/28 and return on 03/30.

ASSISTANT: Ok, please wait a minute I will check and revert to you.

USER: Sure.

ASSISTANT: Sorry to say that there were no flights available on your specifications.

USER: That's ok, not a problem. Thank you for your kind response.

ASSISTANT: Thank you for choosing our service. Have a nice day.