Hello.
user
Hello. How can I aid you today?
assistant
Christine Young here. I am looking for a flight from DCA to SEA, can you flight it for me?
user
Sure, I am happy to help you. May I know your preferable dates?
assistant
My travel dates are from 09/16 till 09/18.
user
Ok, wait for a minute.
assistant
Make sure that the connection limit should be 1.
user
Sorry Young, there are no flight's available based on your travelling dates.
assistant
That's ok, no problem.
user
Thank you for contacting  us.
assistant
Thank you for your help.
user