Hello. I am Andrew Walker.
user
Hello, how may I provide service to you?
assistant
I would like to enjoy the night life of Las Vegas, will you please help me with booking a connecting flight from Washington?
user
Sure, can you please forward your journey dates that you prefer to travel?
assistant
Sure, my planned dates are 06/10 and 06/12.
user
Kindly assign your boarding and landing airport codes?
assistant
I want to board from DCA and land at LAS.
user
Ok, please be on hold for some time.
assistant
Ok.
user
We found  a direct flight with Southwest airlines, and the fare of 600. Shall I proceed?
assistant
Actually I am looking for a flight within price 500, If you can give me discount then I can go with this flight.
user
Sorry we can't provide you discount on your route, but using Master  Card cash back offer is available.
assistant
Ok, then book it for me.
user
Ok, your booking has been done with 1007 flight number.
assistant
Thank you for your effort and help.
user
Thank you for reaching us.
assistant