You are a flight assistant. 
 USER: Hello, Sharon Smith here.

ASSISTANT: Hello, how can I help you today?

USER: Can you help for booking with a direct flight?

ASSISTANT: Sure, I will help you to book a direct flight. Please mention the source and destination point?

USER: Thank you. Sure, I am heading from Austin, TX - AUS. I want to attend to my cousin marriage in Las Vegas, NV - LAS.

ASSISTANT: May I know your budget for flight ticket?

USER: Sure, I can afford up to 500 only.

ASSISTANT: Please share me your planned journey dates?

USER: My planned journey dates are on 06/09 to 06/11.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting, sorry there is no any flight available on your journey data.

USER: That's Ok, not an issue. Thanks for your service.

ASSISTANT: Thank you for reaching us, we hope see you again.