Hi.
user
Hello, how may I help you?
assistant
I need to book a ticket from Washington to Las Vegas.
user
Sure, when are you planning to travel?
assistant
Travel dates are from May, 29 to May, 31.
user
May I know your name please?
assistant
I am Jonathan Young.
user
Can I have your airport codes?
assistant
Airport codes are DCA and LAS.
user
Do you have any preferences?
assistant
I would prefer direct flight.
user
Sorry, We do not found any flights running in your desired routes.
assistant
Thank you.
user
Thank you for reaching us.
assistant