You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am looking to book a flight ticket to meet my friend in Phoenix. Can you help me for booking a flight ticket from MCO to PHX?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My travelling dates are Apr 12 and Apr 14.

ASSISTANT: Which class do you prefer?

USER: My departure time is morning. I prefer business class.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight in my journey.

ASSISTANT: Please give me a moment. May I know your name?

USER: My name is Joshua Lopez.

ASSISTANT: Sorry Joshua Lopez, no flight is available as per your requirements.

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

ASSISTANT: Thank you for choosing us.

USER: Welcome.