You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need nay help from us?

USER: Can you help me to book a flight from LGA to JFK?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My travelling dates are 12/12 and 12/14.

ASSISTANT: Ok, could I have your name please?

USER: Sure, my name is Larry Edwards.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Ok, may I know your class preference?

USER: I prefer business class.

ASSISTANT: Sorry, there is no flight with your request.

USER: No issues. Thank you for your information.

ASSISTANT: You are welcome, have a great day.