Hi, myself Edward Parker.
user
Hello Edward. How can I assist you?
assistant
 I am a social activist, I need to participate in a demonstration. Please book my ticket from ATL to IAH.
user
Ok, could you please provide your travelling dates?
assistant
Sure, I will to travel on 07/31 and return on 08/02.
user
Give me a second, I will get back to you.
assistant
Ok, sure.
user
I am sorry to say that there are no flights found on your requested dates.
assistant
That's fine, no problem.
user
Thank you for reaching us.
assistant
Thank you for your help.
user