You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Paul Anderson. I want to book a flight ticket from Austin to go for a sudden inspection, can you please help me in booking my flight ticket with a stopover.

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to start on 05/20, my return date will be 05/22.

ASSISTANT: Can you please provide your Journey codes?

USER: TX-AUS is my departure point, my landing point is at CA-SFO.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: There is no flight found with your requirements.

USER: Its ok, Thank you.

ASSISTANT: Thanks for availing us.