You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I want to meet my family in PHL. Can you help me in booking flight ticket from SFO?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My trip dates are Jan 02 to Jan 04.

ASSISTANT: Do you have any preferences about flight connections?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Please mention your name.

USER: Dorothy Smith.

ASSISTANT: The United airlines providing an economy class flight with price 100 and the connections 1. Shall I confirm your ticket?

USER: You can book.

ASSISTANT: Your ticket is booked. The flight number is 1018.

USER: Thank you for your service.

ASSISTANT: Welcome, have a great day.