You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I am planning to go for an adventure trip in EWR. Can you book me a ticket from OAK?

ASSISTANT: Sure, May I know the travelling dates?

USER: I will start on Dec 1st and return on Dec 3rd.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need 1 lay by in the middle.

ASSISTANT: Is there any other requirements?

USER: Yes, I am looking for a major cost airline and would also prefer to travel in a business class.

ASSISTANT: May I know your name?

USER: I am Stephanie Green.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: That's alright, thanks for your assistance.

ASSISTANT: Thank you for opting us.