Hello.
user
 Hello, How exactly I can serve you the best today?
assistant
Myself Mark Hernandez.
user
Ok.
assistant
I am planning to make trip from DCA to JFK. Would you help me in booking my ticket?
user
 Sure, I would be happy to help you. Do you prefer any halt in between your journey?
assistant
Yes I would like to have 1 connecting flight in my journey.
user
May I know when you have planned to travel?
assistant
My preferred dates of travelling are from 03/21 to 03/23.
user
 Ok, please wait a moment, let me search a flight for you.
assistant
Ok.
user
There is no flight found in search to your route on your dates of journey.
assistant
Ok, no problem. Thanks for your service.
user
Thank you for reaching us.
assistant