You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I  aid you today?

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

ASSISTANT: Sure, help me with the trip dates?

USER: My travelling dates are Dec 05 and Dec 07.

ASSISTANT: May I know your name for the booking process?

USER: My name is Dorothy Campbell.

ASSISTANT: Do you have any specifications for this trip?

USER: I prefer single connecting flight.

ASSISTANT: Can I have your airport codes?

USER: My airport codes are PHL and CLT.

ASSISTANT: We found a flight in an airline Delta with 1027 number having a single connection in an economy class. Shall I proceed to book?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your flight ticket has been booked.

USER: Thanks for helping me.

ASSISTANT: Thank you for availing us.