You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please help me to book a flight ticket from SEA to PHL.

ASSISTANT: May I know your trip dates?

USER: My trip dates are 12 to 14 of Feb.

ASSISTANT: Do you have any connecting flight preferences?

USER: I need a connecting flight.

ASSISTANT: Is there any other concern?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Stephanie Carter.

ASSISTANT: Spirit Airlines is providing connecting flight with the ticket fare of 100 and depart time is 22:00 hours, arrival time is 6:00 hours. Shall I proceed?

USER: Please proceed to booking.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1004.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.