Hello.
user
Hello, how may I aid you today?
assistant
Can you please help me with booking a flight ticket from LAX to JFK?
user
Sure, can I know your good name please?
assistant
I am Michael Thompson here.
user
 When you are willing to travel?
assistant
My travelling dates are from Dec 14-16.
user
Do you need direct flight or connecting flight?
assistant
I would be comfortable with single stop over.
user
 Would you let us know if you have any other preferences?
assistant
I prefer business class and my depart has to be in evening.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
No problem, thank you for the information.
user
Thank you for availing us.
assistant