You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you help me in booking flight ticket from JFK o LAS?

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

USER: My trip dates are Dec 24 to Dec 26.

ASSISTANT: Do you have any specifications bout flight connections?

USER: Yes, I prefer a connecting flight.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Please mention your name.

USER: Timothy Lewis here.

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

USER: You can proceed.

ASSISTANT: Your ticket is booked. The flight number is 1023.

USER: Thank you for booking.

ASSISTANT: Welcome, have a great day.