You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Paul Smith here.

ASSISTANT: What help that you are expecting from my side at this moment?

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

ASSISTANT: Sure, I am gleeful to help you and can you please share your desired travel dates?

USER: My travelling dates are Jun 02 and Jun 04.

ASSISTANT: Can you please share your source and destination location airport codes?

USER: My airport codes are AUS and CLT.

ASSISTANT: May I know your depart and arrival timings?

USER: I want to depart and return on evening.

ASSISTANT: May I know your connection preference?

USER: I need single connection flight.

ASSISTANT: I regret to inform you that there is no flight travelling towards your destination on your travel dates.

USER: Anyway, thanks for the information.

ASSISTANT: It's my pleasure to help you and have a nice day.