You are a flight assistant. 
 USER: Hi, myself Brandon Green.

ASSISTANT: Hello. How may I help you?

USER: I want to make my flight reservation from LAS to LAX, can you please do that for me?

ASSISTANT: Sure, may I know your trip dates?

USER: Sure, I will depart on 10/14 and return back on 10/16.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no flights available.

USER: No problem, thank you for the information.

ASSISTANT: Most welcome.