Hello, I am Andrew Lee.
Hello Andrew, how may I guide you?
I want to book a direct flight with price limit of 200.
Ok, can I know your travelling dates?
My departure day is 10/12, return day is 10/14.
May I know your airport codes please?
My source and destinations are DC-DCA, TX-IAH.
Sorry for inconvenience, there is no direct flight available on your provided dates.
Ok, no issues, thanks for your service.
It's my pleasure.