Hello.
user
Hello, how may I assist you?
assistant
I am planning to visit Washington, IAD. Can you please book me a ticket from DFW?
user
Sure, may I know your planned travel dates please?
assistant
My preferable journey dates are from 07/29 to 07/31.
user
May I know your good name please?
assistant
My name is Benjamin Baker.
user
Sorry for the incovenience, there is no flight available on your requested dates.
assistant
Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.
user
Welcome.
assistant