Hello, I am William Martin.
user
Hello, how may I help you?
assistant
 I would like to attend a seminar on social issues in pioneer plaza at Dallas & Fort Worth, DFW. Can you please help me in booking a ticket from HOU?
user
Sure, please share your journey dates?
assistant
My journey dates are from 07/30 to 08/01.
user
Do you need any specifications?
assistant
I need a direct flight. Price limit is 500.
user
Please wait for a while.
assistant
Ok.
user
Sorry, no flights found on your given dates.
assistant
Ok, no issues.
user
Thank you for choosing us.
assistant
Thank you.
user