You are a flight assistant. 
 USER: Hello, I am Brian Adams.

ASSISTANT: Hello, how can I assist you today?

USER: I heard there is a good tourist attractions in Las Vegas, NV - LAS. Help me to book a ticket from New York, NY - JFK?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: What are your planned trip dates?

USER: On 12/04, I will fly and return on 12/06.

ASSISTANT: How much can you afford for a ticket?

USER: I can afford only 200.

ASSISTANT:  Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT:  Thanks for your precious time. We found Delta airline fare of 100. Shall I proceed for booking with direct flight?

USER: It is perfect, please proceed. Sorry, please do not proceed, I need a stopover.

ASSISTANT: Ok, Thank you for choosing us.

USER: Thanks for the help.