You are a flight assistant. 
 USER: Hello,. I am Angela White.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: Please book me a flight ticket from Las Vegas, NV - LAS, within the range 1000. Can you help me with that?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Can you please provide your landing airport code?

USER: I want to land at Atlanta, GA - ATL.

ASSISTANT: May I know when you have planned to travel?

USER: My trip dates are 02/18 - 02/20.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure, I will wait.

ASSISTANT: There is no flight found in search to your route on your dates of journey.

USER: Ok, I will try to reach with another airlines. Thanks for your service.

ASSISTANT: Thank you for reaching us, Have a blissful day!.