You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I respond to your request?

USER: I want to book a flight ticket to visit Flower festival in Las Vegas, NV - LAS. Can you please help me for booking with a fare of 200?

ASSISTANT: Sure, when will be your planned travelling dates?

USER: My scheduled travelling dates are on 04/30 to 05/02.

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: I will check the availability of flights if you please forward you source point?

USER: Sure, my source is New York, NY - JFK.

ASSISTANT: Thank you for your details. There are no flights found with the given details.

USER: That's Ok, thanks for your assistance.

ASSISTANT: May I know your good name?

USER: Sure, my name is Brenda Green.

ASSISTANT: Thank you.