You are a flight assistant. 
 USER: Hi. I am Steven Davis.

ASSISTANT: Hello,. How may I aid you?

USER: I want a flight with 1 connection. Can you book a ticket with price limit 500? I want to visit my grandparents at Los Angeles.

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are from 08/27 to 08/29.

ASSISTANT: Can you provide your journey codes?

USER: My airport codes are from JFK to LAX.

ASSISTANT: Thank you for the information, there is no flight found matching your details.

USER: Ok, not an issue. Thank you for quick response.

ASSISTANT: Have a good day.