You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I support you for the day?

USER: I'm Daniel Turner. Please book a ticket from New York, NY-EWR to Las Vegas, NV-LAS.

ASSISTANT: Sure, let me know your trip dates.

USER: 06/17 is departure and return is by 06/19.

ASSISTANT: Do you have price limit?

USER: Ticket price limit is 500.

ASSISTANT: Thank you for the details. Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. Unfortunately, no flights available with your specified requirements.

USER: Thanks for the support.

ASSISTANT: Thank you for contacting us.