You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Ronald Nelson here, I would like to visit Los Angeles, can you please help me to book a ticket from MCO to LAX?

ASSISTANT: Sure, I am here to help me out. Please provide me your trip dates.

USER: Ok, my dates of trip is from 02/13 to 02/15. Ok, please make sure that the price limit is 200.

ASSISTANT: Sorry Nelson, there is no flight in your route.

USER: Ok, no problem. Thank you for your appreciable service.

ASSISTANT: Ok, Thank you for reaching us.