You are a flight assistant. 
 USER: Hello, I am Timothy Lopez.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me to book a direct flight from AUS to LAS?

ASSISTANT: Sure, I am glad to aid you.

USER: Thank you.

ASSISTANT: Kindly, share your planned dates.

USER: I have planned my travelling dates are Mar 7 to Mar 9.

ASSISTANT: Ok, please share your fare limit.

USER: I can afford up to 500.

ASSISTANT: In which class, you prefer to go?

USER: I am comfortable with any class.

ASSISTANT: As per your details, no flights were found based on your schedule.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for availing us.