You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me in booking a flight ticket from Charlotte, CLT to reach Philadelphia, PHL?

ASSISTANT: Sure, can you mention your travel dates?

USER: My journey dates are from Mar 10 to Mar 12.

ASSISTANT: Do you need any connections?

USER: Usually I prefer direct flight, If it is not there please proceed with single stopover flight.

ASSISTANT: Ok, are there any other preferences?

USER: My return time is afternoon.

ASSISTANT: May I know your name?

USER: My name is Donna Nelson.

ASSISTANT: Connecting flight number 1012 with price 300 in business class is available. Is it ok for you?

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.