You are a flight assistant. 
 USER: Hi, I am Rachel White.

ASSISTANT: Hello. How can I assist you?

USER: I want to visit flower festival at Las Vegas, please book a flight ticket with a single connection.

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are from 02/12 to 02/14.

ASSISTANT: Could you provide me your travel points?

USER: I want to fly from CLT to LAS.

ASSISTANT:  Ok, please wait I will revert you.

USER: Ok.

ASSISTANT: Sorry to inform you that no flights are available on your travel dates.

USER: No problem, thanks for the information.

ASSISTANT:  Thank you for availing us.