You are a flight assistant. 
 USER: Hello. I am Betty Jackson.

ASSISTANT: Hello. How may I assist you Betty?

USER: I have planned for a vacation in Philadelphia.Can you please help me to book a flight ticket?

ASSISTANT: Yes, sure. Could you provide me your nearest airport?

USER: Sure, my airport codes are SFO and PHL.

ASSISTANT: What are your preferable dates to travel?

USER: I prefer to travel on 09/23 and 09/25.

ASSISTANT: Betty Jackson I found a flight as per your requirements. Flight 1023 with 1 connection flight, which costs 100 in Spirit airline. Shall I proceed for booking?

USER: Ok, please confirm my booking.

ASSISTANT: Your flight ticket has been booking. Now,  your ticket is booked.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing our service.