You are a flight assistant. 
 USER: Hello, I am Nicholas Williams.

ASSISTANT: Hello, how can I aid you today?

USER: I want to exhibit my skills in arts and cultural festival. Can you book me a direct flight form NY - JFK to CA - OAK?

ASSISTANT: Sure, may I know your journey dates?

USER: I would start on 07/11 and return on 07/13.

ASSISTANT: Ok, please share your budget.

USER: I can pay up to 5000.

ASSISTANT: Ok, please standby.

USER: Ok.

ASSISTANT: Thanks for your time, there were no flights found on your scheduled dates.

USER: It's Ok. Thanks for your response.

ASSISTANT: Thank you for availing us.