You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Jason Taylor. I want to attend my brother's wedding in New York.Can you book a ticket from LAS to JFK?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: I want to fly on 06/30 and 07/01.

ASSISTANT: Do you have any price limit?

USER: My budget is 200 for the ticket.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that we have not found any flights with your given details.

USER: That's ok.

ASSISTANT: Thanks for choosing us.

USER: Thank you for quick response.

ASSISTANT: Thank you, have a good day.