Hello,.
user
Hello, how can I help you?
assistant
I am Sarah Johnson. I want to book a flight ticket to Washington to visit white house, please help me out.
user
Sure, please provide me your travelling dates.
assistant
My travelling dates are from 07/27 to 07/29.
user
Can I have your airport codes please?
assistant
I want to fly from LAS to IAD.
user
Do you need any connection in between your journey?
assistant
I need a single connection in between my journey.
user
Sorry, no flights available with your requirement.
assistant
No issues, thank you.
user
Have a good day.
assistant