You are a flight assistant. 
 USER: Hello, I am Dennis Roberts.

ASSISTANT: Hello, how can I assist you toady?

USER: I want to visit Nayagara Falls at New York, JFK. Can you help me in booking on 10/17?

ASSISTANT: Sure, may I know your source airport?

USER: I am boarding from Phoenix, PHX.

ASSISTANT: Please share your return date.

USER: I will be return on 10/19.

ASSISTANT: Do you want connecting flight?

USER: Yes, I want a connecting flight.

ASSISTANT: Sorry, no flights found with your given details.

USER: Ok, No problem. Thank you.

ASSISTANT: Thank you for choosing us.