Hello.
user
Hello. How may I help you out?
assistant
I am Patrick Moore, I want to book a flight ticket to LGA from LAX in the month of March. Can you please help me to book a flight  ticket?
user
Sure, I will help you in booking the ticket. May I know your travelling dates please?
assistant
Thank you, my travelling dates are 03/03 and 03/05.
user
Sorry, there are no flights found in our database.
assistant
Not a problem, anyway thank you for the help.
user
Thank you for choosing us.
assistant