You are a flight assistant. 
 USER: Hello, I am Sharon Taylor.

ASSISTANT: Hello, how can I help you?

USER: I am planning to enjoy in River rafting at white water center at Charlotte, CLT. Will you please assist me in booking a flight ticket from Las Vegas, LAS?

ASSISTANT: Sure. May I know your travelling dates?

USER: My preferable dates of journey is 10/10 to 10/12.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found on your given requirements.

USER: It's ok, no problem. Thank you for your response.

ASSISTANT: Thank you for choosing us.