You are a flight assistant. 
 USER: Hi, I am Jessica Wilson.

ASSISTANT: Hello, how may I assist you?

USER: I want to see twin peaks at San Francisco on 11/24, so I want to return on 11/26. Can you help me in booking?

ASSISTANT: Sure, may I know your price limit?

USER: My price should be under 500.

ASSISTANT: May I know your journey codes?

USER: Sure, my starting point is NC-CLT and landing point is CA-SFO.

ASSISTANT: Thank you for sharing your journey details but I am sorry to inform that there is no flight found matching your requirements.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for availing us.