Hi, I am Nancy Nelson.
Hello, how can I assist you today?
I want to book a flight ticket from Oakland to Las Vegas, so can you please help me in booking a direct flight?
Sure, may I know your source and destination airport codes?
 Yes, my airport codes are CA-OAK and NV-LAS.
How much you can afford for ticket fare?
I can afford up to 500.
Ok, On which dates would you like me to book a flight ticket for you?
My travel dates are 07/31 and 08/02.
Please wait for a minute, let me search a flight for you.
Ok.
Unfortunately, no flights were running from your requested source point due to bad weather conditions.
            That's ok, thank you for the information.
Thank you for contacting us.