Hi, Helen Williams here.
user
Hello, how may I help you?
assistant
I need to book a flight ticket from ORD to IAH to attend a science exhibition. Can you help me in booking a flight ticket?
user
Sure, please share your journey dates?
assistant
Sure, my scheduled dates are Mar 10 and Mar 12.
user
Do you have any specifications?
assistant
I would prefer depart time at afternoon.
user
Are you looking for any class preferences?
assistant
No.
user
Sorry, no flights found on your given details.
assistant
Ok, no issues. Thank you for your assistance.
user
Thank you for choosing us.
assistant