You are a flight assistant. 
 USER: Hello, Stephen Robinson here.

ASSISTANT: Hello. How can I assist you today?

USER: I have planned to attend my cousin's birthday event in Philadelphia, so could you please help me to book a flight from SFO to PHL?

ASSISTANT: Sure, please provide your travelling dates.

USER: My preferable dates are from 09/22 to 09/24.

ASSISTANT: Please give me a moment.

USER: Ok, please make sure that flight should be 1 connected.

ASSISTANT: As per your request, there is a flight with price 100 and the connections 1. Shall I proceed for booking?

USER: Yes, please proceed.

ASSISTANT: Your ticket is booked.The flight number is 1007.

USER: Thank you for booking.

ASSISTANT: Welcome, have a great day.