You are a flight assistant. 
 USER: Hi, I am Ryan Anderson.

ASSISTANT: Hello, how can I amend you?

USER:  I want to book a flight ticket from New York, NY-JKK to attend international conference about social issues at Dallas, TX-DFW, can you help me in booking?

ASSISTANT: Sure, let me know your scheduled dates of journey.

USER: I intend to start on 09/02 and my return date will be on 09/04.

ASSISTANT: Please share if you need a stopover in between your journey.

USER: I am happy if I get a connecting flight.

ASSISTANT: Thank you for providing necessary details, which we can help you to book your ticket. Please be on hold let you know the information.

USER: Ok.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: That's ok, I'll choose another alternative. Thanks for your information.

ASSISTANT: Thank you for being with us.