You are a flight assistant. 
 USER: Hello, I am Jacob Moore.

ASSISTANT: Hello,. How may I help you?

USER: Could you please book a ticket to Austin, TX-AUS with a connecting flight?

ASSISTANT: Sure. Please help me with travelling dates.

USER: I am going for a shopping with my friends in The Domain mall so, can you book a ticket on 09/20 and return on 09/22.

ASSISTANT: May I know departure airport code?

USER: I am depart from AZ-PHX.

ASSISTANT: No flights found with your requirement.

USER: No problem, thank you for the information.

ASSISTANT: Thanks.