Hi,.
user
Hello, how can I assist you?
assistant
Please book a ticket to Houston, TX-HOU from Las Vegas, NV-LAS.
user
Sure, please let me know your travelling dates.
assistant
Journey dates are from 07/07 to 07/09.
user
Can I have your name please?
assistant
I am Virginia Moore.
user
There are no flights with your requirement.
assistant
Thanks.
user
Have a good day.
assistant