You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight from JFK to visit comic-com with my friend. Can you find me a flight to LGA?

ASSISTANT: Sure, can you please share your planned travel dates?

USER: I will fly on Sept 20 and return on Sept 22.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is Benjamin Carter.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for opting us.