Hello.
user
Hello. How can I  help you?
assistant
Can you please help me in booking a flight ticket to LAX from LAS?
user
Your travelling dates pleas?
assistant
My travelling dates are June 25 and June 27.
user
Do you have any specifications?
assistant
I need a connecting flight which departures in the afternoon which returns in the evening.
user
May I know your name please?
assistant
Sure, my name is Shirley Harris.
user
I am sorry no flights found on your route.
assistant
Not a problem, anyways thank you for the information.
user
Thank you for choosing us.
assistant