Hello, my name is David Lopez.
user
Hello, how may I assist you?
assistant
I would like to book a flight ticket to IAH from ATL, could you please search any inexpensive flight?
user
Sure, may I know your planned travel dates please?
assistant
Definitely, my departure and arrival day are 05/21 and 05/23.
user
Sorry, there is no flight available on your requested dates.
assistant
That's ok, thank you for the information.
user
You are most welcome.
assistant