You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I assist you?

USER: Can you help me in booking a ticket?

ASSISTANT: Sure, Can you please provide your journey details?

USER: Yes, I want to travel from Orlando,FL- MCO to Las vegas, NV-LAS. My journey dates are from aug/9 to aug/11.

ASSISTANT: OK, May I know your name?

USER: My name is Ronald Moore.

ASSISTANT: OK, Please wait for a moment. I will check the availability of flight and get back to you.

USER: OK.

ASSISTANT: Thanks for waiting. Sorry, There are no flights are available.

USER: Thank you for the information.

ASSISTANT: Thank you for contacting us.