You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you today?

USER: I am Stephanie Hernandez. I heard that Philadelphia is a best place for sight seeing, so can you please book a ticket from Austin?

ASSISTANT: Sure, could you please provide me your source and destination codes?

USER: My journey airport codes are from AUS to PHL.

ASSISTANT: May I know your journey dates?

USER: I want to travel on 09/20 and return on 09/22.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Please wait for a moment. I will check and get back to you.

USER: Sure.

ASSISTANT: We are glad to say that, we found an airline: Southwest, flight number: 1001 and price is 200.

USER: Ok, proceed with the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your quick response.

ASSISTANT: Thank you for reaching us.