You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What can I do for you?

USER: I'm Gregory Mitchell, can you please book my ticket?

ASSISTANT: Yes sure. Could you help me with your journey locations?

USER: I am planning to go for JFK which is located in New York from LAS?

ASSISTANT: May I know your travelling dates?

USER: My travel dates are 02/21 and 02/23. Make sure that connection should be 0.

ASSISTANT: Sorry Gregory, there is no flight with 0 connection limit.

USER: Ok, fine. I will search for another way to complete my trip.

ASSISTANT: Ok. Thank you for reaching us, have a nice day.

USER: Welcome.