You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket to ATL. Can you please make a reservation from SFO?

ASSISTANT: Sure, may I know your itinerary dates?

USER: My trip dates are on Dec 17 and 19.

ASSISTANT: Which class do you prefer?

USER: I am fine with any class.

ASSISTANT: May I know your name?

USER: My name is Margaret Green.

ASSISTANT: Do you prefer a direct flight?

USER: I am comfortable with any flight.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: UA airlines with flight 1029 is providing a connecting flight and ticket costs you 100 in economy class.

USER: Ok, please go ahead for booking.

ASSISTANT: Your ticket is confirmed Margaret Green.

USER: Thank you.

ASSISTANT: Thank you for choosing us.