Hi, I am Dorothy Clark.
user
Hello, how may I assist you?
assistant
I need to book a direct flight to treat an emergency case at Las Vegas, can you help me to book a fight ticket?
user
Sure, please share your journey dates?
assistant
02/19 and 02/21 are my planned travelling dates.
user
Please forward your airport codes?
assistant
I will start on Washington DC-DCA to reach Las Vegas, NV-LAS.
user
Sorry to inform you that there are no flights found with your given details.
assistant
Ok, not a problem.
user
Thank you for opting our service.
assistant
Thank you.
user
Have a nice day.
assistant