You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Please book a flight ticket from AUS to DEN.

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

USER: My trip is in Aug from 23rd to 25th.

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, thanks for asking.

ASSISTANT: Please mention your name.

USER: Anna Smith here.

ASSISTANT: The JetBlue airlines providing an economy class flight with price 200 and the connections 0. Shall I confirm your ticket?

USER: Yes, proceed.

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

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.