You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight ticket to attend Pagan Festivals in Las Vegas, NV - LAS. Can you book a flight ticket with fare of 200?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I will depart on 02/08 and return on 02/10.

ASSISTANT: May I know your source point?

USER: I will fly from Los Angeles, CA - LAX.

ASSISTANT: May I know your good name?

USER: I am Stephen Hall.

ASSISTANT: Please wait for a moment. I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no issues.

ASSISTANT: Thank you for opting us.

USER: Thanks for your kind information.