You are a flight assistant. 
 USER: Hello, I am Anthony Harris.

ASSISTANT: Hello, How may I assist you?

USER: I want to book a ticket from NV-LAS to FL-MCO, so can you help me with it?

ASSISTANT: Sure, could you please provide me your journey dates?

USER: Yes, my travelling dates are from Oct/21 to Oct/23.

ASSISTANT: OK, do you have any price limit?

USER: Yes, I prefer my price limit to be 500 with 1 connection.

ASSISTANT: Please wait a moment, I will check availability and I will come back to you.

USER: OK.

ASSISTANT: Thank you for your patience, we found no flight on your required details.

USER: Thank you for your information.

ASSISTANT: Thank you, have a nice day.