You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I am Justin Walker. Can you help me searching flights from LAX to AUS?

ASSISTANT: Sure, I will assist you with that. May I know your travel dates?

USER: My traveling dates are 03/16 and 03/18.

ASSISTANT: Sorry Justin, there are no flights available at those locations.

USER: Oh! It's ok, no problem.

ASSISTANT: Thank you for choosing our agency.

USER: You are welcome.