Hello.
user
Hello, how can I help you?
assistant
Can you please reserve me a flight ticket from  IAD to IAH?
user
May I know your desired travel dates please?
assistant
My travel dates are Apr 29 and May 01.
user
Do you have any specifications?
assistant
I need a connecting flight.
user
May I know your name please?
assistant
I am Karen Garcia.
user
Sorry to say, there is no flight on your desired travel dates.
assistant
Ok, no issues. Thank you.
user
Thank you for opting us.
assistant