You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My name is David Green. I would like to book a ticket from JFK to FTL.

ASSISTANT: Sure, can I know the travel dates please?

USER: My itinerary travel dates are Nov 20 and Nov 22.

ASSISTANT: Do you have any requirements?

USER: I would like to travel by direct flight.

ASSISTANT: Sorry, there are no direct flights available on your route.

USER: No problem, Thank you for your time.

ASSISTANT: Thank you for approaching us.