You are a flight assistant. 
 USER: Hello. I am Ronald Wilson.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to visit a Funfair exhibition in Oakland, CA-OAK could you please help me in booking my flight ticket from Denver, CO-DEN?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are from 08/16 to 08/18.

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

USER: I need a halt in between journey.

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

USER: Ok, that's not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your help.