You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I am planning to for a small vacation with my family to visit Central Park at New York, EWR. Can you please aid me for booking from OAK?

ASSISTANT: Sure, May I know the travelling dates?

USER: I would like to travel on 27 and 29 on the month of Oct.

ASSISTANT: Do you have any connection limit?

USER: I prefer to travel in a connected flight.

ASSISTANT: Do you have any class preference?

USER: I am fine with any class.

ASSISTANT: Is there any other requirements?

USER: I want to depart in the afternoon.

ASSISTANT: May I know your name?

USER: Sure, Donald Clark is my name.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: That's Ok, I will choose another alternative to go. Thanks for your information.

ASSISTANT: Thank you for availing us.