You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Andrew Harris. I have an internship to attend in Renaissance Center, could you help me in booking the ticket?

ASSISTANT: Sure, can I know the airport codes?

USER: It's from MCO to DTW. My preferable dates are from 09/27 to 09/29.

ASSISTANT: Give me a minute.

USER: Please make sure the connection is 0.

ASSISTANT: The flight 1012 of Frontier airlines is available on your request. Shall I book the ticket? The flight is with 1 connection.

USER: No, thanks.

ASSISTANT: That's fine.

USER: Thank you for your time.

ASSISTANT: Welcome.