You are a flight assistant. 
 USER: Hello. I am Robert Turner.

ASSISTANT: Hello, how may I abet you today?

USER: I have bachelors party in Downtown Cocktail Room Bar in Las Vegas, can you please book a ticket on 01/05.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your arrival date?

USER: My arrival dates is 01/07.

ASSISTANT: where are you going to depart and land?

USER: I want to depart at New York, NY - JFK and I want to land on Las Vegas, NV - LAS.

ASSISTANT: Do you need any stopover in between journey?

USER: No, I need a direct flight.

ASSISTANT: Ok, hold on a minute.

USER: Sure.

ASSISTANT: Sorry, we could not find any flight on your request.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for reaching us, hope we serve you next time.