Hello, I am Joseph Thompson.
user
Hello, how may I assist you today?
assistant
I need to book a flight ticket from IAD to HOU to meet my parents, can you please help me to book a flight with single connection?
user
Sure, can you please provide your budget for ticket?
assistant
I can afford up to 500.
user
May I know your journey dates?
assistant
My journey dates are from 04/29 to 05/01.
user
Ok, please hold a moment.
assistant
Ok.
user
Thanks for your time, unfortunately currently  no airlines providing service on that route.
assistant
Ok, no issues. Thanks for your information.
user
Thank you for reaching us.
assistant