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

ASSISTANT: Hello. How can I help you?

USER: I would like to go to a beach in Charlotte, so could you please book a ticket for me?

ASSISTANT: Sure, I will help you to book a flight ticket, Can you please provide me your travelling dates?

USER: I would like to go on 03/03 and return back on 03/05.

ASSISTANT: Ok, may I know your travelling airport codes?

USER: My source and destination airport codes are LAX and CLT.

ASSISTANT: Please hold on for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Sorry, there is no flight is found on your route with single connection.

USER: That's ok, thank you.

ASSISTANT: Welcome. Thank you for choosing us.

USER: Welcome.