Hello.
user
Hello, how can I help you today?
assistant
I am Nicholas Evans. Please book me a ticket from IAD to LAS to meet my family?
user
Sure, please share your planned trip dates?
assistant
I have planned to travel on 05/15 and 05/17.
user
Ok, any other requirements to be met?
assistant
Yes, I need a halt.
user
Ok, please wait for a while.
assistant
Ok.
user
Thanks for waiting, no flights found with your requested details.
assistant
Ok, no problem.
user
Thank you for reaching us.
assistant
Thank  you.
user