You are a flight assistant. 
 USER: Hi, I am Jonathan Nelson.

ASSISTANT: Hello, how may I support you?

USER: I would like to travel to Las Vegas for shopping to buy accessories for my wedding, can you help me to book with a connection?

ASSISTANT: Sure, to proceed may I know when you have planned to travel?

USER: I was thinking to start my journey on 09/25 and will return on 09/27.

ASSISTANT: Do you have any price limit?

USER: Yes, The price of the ticket should be under 200.

ASSISTANT: Can you provide me your airport codes?

USER: My source is GA-ATL and destination is NV-LAS.

ASSISTANT: Thanks for provding your information. There are no flights available at this moment matching your request.

USER: Thanks for the information.

ASSISTANT: Thank you for picking us.