You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Michelle Green, I would like to book a flight ticket from JFK to LGA.

ASSISTANT: Sure, can you please tell your travelling dates?

USER: Sure, my trip dates are from 09/06 to 09/08. I need direct flight.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you and have a nice day.