Hello.
user
Hello. Welcome to American airlines.
assistant
I am Richard Jones.
user
How can I help you?
assistant
Can you please book me a flight ticket to DCA from IAD?
user
Sure, on which dates you want to travel?
assistant
My travelling dates are from 12/17 to 12/19.
user
Please wait for a minute. Thanks for your patience, but I cannot find any flight with your travel dates.
assistant
No problem.
user
Thanks for contacting us, have a great day.
assistant
Thank you for your response.
user