You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I want to reserve my ticket from SFO to AUS, can you please help me in reserving my ticket?

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

USER: Ok, my planned dates of journey are from Dec, 15 to Dec, 17.

ASSISTANT: Do you have any preferences about class?

USER: No, I want to travel in a normal cost airline preference.

ASSISTANT: Do you have any preferences about flight connections?

USER: Yes, I want to fly in a connecting flight.

ASSISTANT: Please mention your name.

USER: Sure, my name is Catherine Parker.

ASSISTANT: The United airlines providing an economy class flight with price 400 and the connections 1. Shall I confirm your ticket?

USER: Ok, please book it.

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

USER: Thank you for your service in booking my ticket.

ASSISTANT: Welcome, have a great day.