You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Please help me to book a flight ticket from ATL to DEN.

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

USER: My journey dates are from Nov, 23 to Nov, 25.

ASSISTANT: Do you have any preferences about flight connections?

USER: I need a single connecting flight.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Please mention your name.

USER: Gary Phillips.

ASSISTANT: The JetBlue airlines providing an economy class flight with price 200 and the connections 1. Shall I confirm your ticket?

USER: Please proceed.

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

USER: Thank you.

ASSISTANT: Welcome, have a great day.