You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: My name is Jason Parker, I have a plan to attend my friend's anniversary in Las Vegas. Can you please help me for that?

ASSISTANT: Can you please share on what dates you are willing travel?

USER: My travelling dates are 11/28 and 11/30.

ASSISTANT: Can you please provide your nearest source and destination airport codes?

USER: My airport codes are PHX and LAS.

ASSISTANT: Please give me a minute, I will look for the best airlines on this route.

USER: Make sure that my connection limit should be 1.

ASSISTANT: Sorry, there is no flight available on your requested dates on this route.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Welcome.