You are a flight assistant. 
 USER: Hello. I am Janet Walker.

ASSISTANT: Hello, how may I abet you for the day?

USER: I want to visit Triphammer Falls at NewYork,NY-JFK with my friends.. Can you book a connecting flight?

ASSISTANT: Sure, on which dates you would like me to book a ticket for you?

USER: My travelling dates are 07/09 and 07/11.

ASSISTANT: Please mention the airport code of your source?

USER: I will depart from Oakland, CA-OAK.

ASSISTANT: May I know the price that you can afford for a ticket?

USER: Make sure price should not exceed more than 5000.

ASSISTANT: Ok, thank you for providing the details.

USER: Ok.

ASSISTANT: Sorry to inform you, currently no flights are running at your preferred locations due to abnormal weather conditions.

USER: Ok, thank you for your service.

ASSISTANT: Thank you for opting us, have a pleasant day.