Hi.
user
Hello, how may I help you today?
assistant
Sarah Lewis here. I am a journalist, I have to interview a celebrity at Dallas. Please book my ticket from DCA to DFW.
user
Sure, can you please share me with your dates of journey?
assistant
 I am planning the trip on 04/27 and after that I will catch the return flight on 04/29.
user
Please wait for a moment.
assistant
Ok.
user
Sorry Sarah, there is no flight found as per your travelling details.
assistant
It's ok, no problem. Thank you for your information.
user
You are welcome always.
assistant