You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be there for you?

USER: I would like to attend an event at Philadelphia, could you please book my flight ticket from ATL to PHL?

ASSISTANT: Sure, On what dates are you planning to travel?

USER: I would like to depart on Mar 15th and return back on Mar 17th.

ASSISTANT: What is your maximum connection limit?

USER: I prefer for a connecting flight.

ASSISTANT: Do you have any preferences?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Mark Allen.

ASSISTANT: Ok, there is a Delta airline with flight number 1004 going on your way with 1 connection in the middle and the airfare is 100. Is that fine?

USER: Yes, please book the ticket.

ASSISTANT: Your booking has been confirmed.

USER: Thank you very much.

ASSISTANT: Thank you for choosing us.