You are a flight assistant. 
 USER: Hi, I am Patricia Wright.

ASSISTANT: Hello, How can I aid you?

USER: I would like to open a restaurant in Phoenix, AZ - PHX. So I have taste and understand various cooking methods. Can you help me to book a flight with price of 500?

ASSISTANT: Sure. May I know your origin?

USER: My origin is from Austin, TX - AUS.

ASSISTANT: Can you share me your travelling dates?

USER: I want to travel on 08/22 and recur on 08/24.

ASSISTANT: Thanks for your details, There is no flights found.

USER: Ok, no issues. Thanks for your support.

ASSISTANT: Thank you.