You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to travel from LAS to LAX as a business trip. Can you do the reservation?

ASSISTANT: Sure, I am very happy to help you. Can you please help me with your travel dates?

USER: My trip dates are Sep 21st and Sep 23rd.

ASSISTANT: May I know your name?

USER: Gregory Mitchell here.

ASSISTANT: Gregory Mitchell, do you have any other requirements?

USER: Price should not cross 200. I need break in my journey.

ASSISTANT: Sorry to inform you, there is no flight available on your preferred travel dates.

USER: No problem, Thanks for the information.

ASSISTANT: You are welcome and thank you for reaching us.