You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, How may I assist you?

USER: Please provide a ticket to Phoenix, AZ-PHX from Austin, TX-AUS, for an Autoshow.

ASSISTANT: Sure, we will help you. Along with airport codes, I need your travelling dates.

USER: Ok. My return is 09/17 and depart by 09/15.

ASSISTANT: May I know your name please?

USER: I am Ruth Thompson.

ASSISTANT: Thanks for sharing information, but no flights found.

USER: Thanks for the help.

ASSISTANT: Thank you.