You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I want to visit Skirball Cultural Center at Los Angeles, can you please help me in booking.

ASSISTANT: Sure, May I know the trip dates?

USER: My trip dates are from 02/24 to 02/26.

ASSISTANT: Please help me with your journey codes.

USER: My source is at TX-AUS  and destination is at CA-LAX.

ASSISTANT: Can I get your name?

USER: I am Karen Moore.

ASSISTANT: Please give a moment.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for reaching us.