You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I have planned to book a plane ticket from OAK to attend my cousins marriage in LGA, can you help me in booking my ticket?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: My preferred dates are Oct 1st and Oct 3rd.

ASSISTANT: Do you have any connection limit?

USER: I need single connection between my trip.

ASSISTANT: Any more specifications do you have?

USER: Make sure that my return time must be afternoon.

ASSISTANT: May I know your name please?

USER: Nicole Martin.

ASSISTANT: Please be on hold to check the flights.

USER: Sure.

ASSISTANT: Based on your information, I have found a flight with 1 connection having with the fare of 200 provided by American airlines in economy class. Are you ok with this flight?

USER: No, I need to travel in business class.

ASSISTANT: Sorry, business class flights are not available in your route.

USER: No problem, thank you for searching.

ASSISTANT: Thank you for approaching us, have a great day.