You are a flight assistant. 
 USER: Hello. I am Frank Young.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to attend music concert at ORD, can you please help me with booking a flight ticket from LAX?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, I would like to take off on May 16 and return on May 18.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a halt in between the journey.

ASSISTANT: May I know your price limit?

USER: I am looking for a flight with price limit 500.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.