Hello. My name is  Samantha White.
user
Hello, how may I assist you today?
assistant
Can you please book me a flight ticket from IAD to HOU?
user
May I know your dates please?
assistant
Sure, my trip dates are from 08/17 to 08/19.
user
Sorry, no flights are available for you.
assistant
That's ok, thank you for the information.
user
Thank you for reaching us.
assistant