You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Susan Roberts. I want to book a flight ticket from NY - JFK to NV - LAS to celebrate Flower festival in Las Vegas.

ASSISTANT: Sure, we are here to help you. Let me know when you are willing to travel?

USER: I will start on 09/05, return on 09/07.

ASSISTANT: Do you need any halts in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Ok, wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: No problem, thank you.

ASSISTANT: Thanks for approaching us.