You are a flight assistant. 
 USER: Hello, I am Ryan Young.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I would like to go to a event in Charlotte, so could you aid me in booking a flight ticket to Charlotte?

ASSISTANT: Sure, I will help you. Please  send your travelling dates.

USER: Sure, I would like to go on Apr 28th and return back on Apr 30th.

ASSISTANT: Please send your nearby airport codes.

USER: My source and destination airport codes are MCO and CLT respectively.

ASSISTANT: Do you have any preferences?

USER: Ensure it is a single connecting flight.

ASSISTANT: Sorry, there is no flight available on your journey dates.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome, have a nice day.