You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Ryan Jackson. I have to attend a seminar in Los Angeles, could you please help me with booking a flight ticket from MCO to LAX?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates?

USER: I would like to take off on 02/12 and return on 02/14.

ASSISTANT: Ok, wait a moment.

USER: Make sure that the price limit should not exceed 500.

ASSISTANT: Sorry for inconvenience, there is no flight available for you.

USER: That's ok, no issues. Thank you for the information.

ASSISTANT: You are welcome. Thank you for approaching us.