Hello,  myself Paul Clark.
user
Hello, how may I assist you?
assistant
I am planning to book a flight ticket to IAH from IAD, can you please help me out?
user
Sure, may I know your travel dates?
assistant
Sure, my planned travelling dates are Aug 10 and 12.
user
At what time do you like to travel?
assistant
Please make sure my departure time is evening and my return time is morning.
user
Do you have any specification?
assistant
Yes, I am looking for a flight with 1 connection.
user
Sorry, there is no flight on your details.
assistant
It's ok, thank you for the information.
user
Thank you for choosing us.
assistant