You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Please book a flight ticket from DFW to LGA?

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

USER: My journey dates are Feb 22 and Feb 24.

ASSISTANT: Do you have any specifications about flight connections?

USER: I need a connecting flight.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Please mention your name.

USER: I am Susan Johnson.

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

USER: Go ahead.

ASSISTANT: Your ticket is booked. The flight number is 1000.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.