You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to travel from Oakland, OAK to Las Vegas, LAS. Can you please help me with booking a flight ticket?

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

USER: Sure, my travel dates are from Feb 25 to Feb 27.

ASSISTANT: Do you have any preferences about flight connections?

USER: Yes, I need a flight with single connection limit.

ASSISTANT: Do you have any preferences about class?

USER: No, I am comfortable with any class.

ASSISTANT: Please mention your name.

USER: Sure, Nicholas Carter.

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

USER: Yes, please confirm the ticket booking.

ASSISTANT: Your ticket is booked. The flight number is 1020.

USER: Thank you for your help in booking my ticket for the flight-1020.

ASSISTANT: Welcome, have a great day.