You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I am William Hall. Can you please help me in booking a flight ticket from LAS to SFO?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: I want to fly on Nov 14 and return on Nov 16.

ASSISTANT: Please allow me a moment. .

USER: Ok.

ASSISTANT: Here is a flight with 1 stop and price is 200 in Southwest airlines, can I proceed with it?

USER: I need a direct flight. Don't proceed to booking.

ASSISTANT: Sorry  William Hall, there is no direct flight.

USER: Not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.