You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Could you please help me to book a flight ticket from SFO to JFK?

ASSISTANT: Please share your trip dates?

USER: My trip dates are Nov 21 and Nov 23.

ASSISTANT: Is there any specifications for you?

USER: I need a single connecting flight.

ASSISTANT: May I know your name please?

USER: I am Mary Lee.

ASSISTANT: Spirit Airlines is providing connecting flight with the ticket fare of 100 and depart time is 11:00 hours, arrival time is 15:00 hours. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1002.

USER: Thank you.

ASSISTANT: Thank you for the help.