Hello.
user
Hello, what service you are expecting from us?
assistant
I am Nancy Hernandez. I want to book a ticket with the connection limit 0, can you help me with that?
user
Yes, I will help you with that. Can you please provide me your travelling dates?
assistant
Ok, my preferable dates are 02/16 and 02/18.
user
Ok, which airports do you prefer to travel?
assistant
Sure, I want to start my journey from JFK to  IAD.
user
Ok, please wait a moment.
assistant
Ok.
user
Sorry to tell you that, there are no flights found which is having a connection limit 0.
assistant
Ok, that's fine. Anyway's thank you for your information.
user
Thank you for approaching us.  Have a nice day.
assistant