You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning to book a ticket from SFO to MSP.  Can you please help me out?

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

USER: I am planning to travel on Apr 17 and return back on Apr 19.

ASSISTANT: Do you have any preferences about flight connections?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any preferences about class?

USER: I am ok with any class.

ASSISTANT: Please mention your name.

USER: My name is Matthew Allen.

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

USER: That's fine, please proceed the booking.

ASSISTANT: Your ticket is booked. The flight number is 1016.

USER: Thank you for your service.

ASSISTANT: Welcome, have a great day.