You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you?

USER: I am Paul Lewis. Can you please help me in booking a flight ticket from ORD to PHL?

ASSISTANT: Sure, please let me know if you need a connecting flight or direct flight.

USER: I need a connecting flight.

ASSISTANT: On what dates will you be travelling?

USER: I want to travel on 11/04, and need to catch return flight on 11/06.

ASSISTANT: Ok, let me check what flights are available for you.

USER: Ok.

ASSISTANT: We have a Delta airline with flight number 1010 available for you and the ticket cost is 100. Is that fine?

USER: Proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing us.