You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to travel from LAS to JFK. Can you help me to book a flight ticket?

ASSISTANT: Sure, may I know your planned travelling dates please?

USER: I want to fly in the flight on Mar 19 and Mar 21.

ASSISTANT: May I know your name please?

USER: Donna Jones.

ASSISTANT: May I know your class preference please?

USER: No, but I want to have a connecting flight.

ASSISTANT: There is a connecting flight of fare 100 with economy class in American airline, shall I proceed for booking?

USER: Proceed to booking.

ASSISTANT: Your ticket has been confirmed with flight number 1016.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.