You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am searching a flight which is travelling from LAS to IAH. Can you please help me to book the ticket?

ASSISTANT: Sure, I am here to help you. Could you please tell me your journey dates?

USER: Thank you. My planned journey dates are Mar 30 and Apr 01.

ASSISTANT: Do you have any preferences about flight connections?

USER: My preferred number of connections in between my journey is one.

ASSISTANT: Do you have any preferences about flight timings?

USER: I am willing to return back in the evening flight. So, please check for the flight with this requirement.

ASSISTANT: Please mention your name.

USER: My name is Carolyn Lewis.

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

USER: Yes, I am happy to travel in this flight. You can proceed to confirm the flight ticket.

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

USER: Thanks a lot for your help.

ASSISTANT: Welcome, have a great day.