You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jack Young here.

ASSISTANT: How can I assist you today?

USER: I want to attend a Marriage in Atlanta. Can you please help me for booking the flight ticket?

ASSISTANT: Ok, please can I know the dates of your journey?

USER: My travelling dates are Apr 08 and Apr 10.

ASSISTANT: Ok, please can I know the airport codes of your origin and destination?

USER: My airport codes are PHX and ATL. I want to prefer business class.

ASSISTANT: Ok, please can you let me know the connection limit you need?

USER: I need single connecting flight. I want to return on morning.

ASSISTANT: Ok, please wait a moment.

USER: Ok, I will wait.

ASSISTANT: Sorry, there are no flight ticket available as per your intents.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for choosing our agency.