Hello. I am Raymond White here.
user
Hello, how may I help you today?
assistant
I am planning to book a flight ticket from IAH to IAD. Can you please help me with booking?
user
Sure, we are here to help you. Please kindly share your travel dates.
assistant
My planned trip dates are Mar 19 and Mar 21.
user
Sorry to inform you that there is no flight on your requirement dates.
assistant
Ok, not a problem. Thank you for the information.
user
Thank you for contacting us.
assistant