You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I want to book a flight ticket from JFK to LGA, can you please help me?

ASSISTANT: Sure, May I know the travelling dates?

USER: My planned travel dates are Nov 30 and Dec 2 respectively.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Is there any other requirements?

USER: Yes, I am looking for a economy class.

ASSISTANT: May I know your name?

USER: Sure, myself Katherine Clark.

ASSISTANT: Please wait a minute.

USER: I will wait.

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

USER: That's fine. anyway thank you for checking.

ASSISTANT: Thank you for opting us.