You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is William Davis.

ASSISTANT: How can I help you William Davis?

USER: I am a poker freak and would like to visit Bellagio casino in Las Vegas. Can you help in booking a ticket to Las Vegas?

ASSISTANT: Sure, can you please provide your journey dates?

USER: I am planning my journey on dates 04/10 and 04/12.

ASSISTANT: May I know your airport codes of travelling?

USER: I would like to board at LGA and destination airport code is LAS.

ASSISTANT: Please, wait a moment, let me check the flight availability on this route.

USER: Sure.

ASSISTANT: There is a flight 1004 of AA airlines available for you with 1 connection.

USER: I am looking for a flight with 0 connection. Can you find with 0 connections?

ASSISTANT: Sorry, there are no flights available with 0 connection limit.

USER: Its ok. Thank you for the information.

ASSISTANT: Thank you for using our services.

USER: Welcome.