You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am looking for a flight from JFK to DEN, can you please help me in booking?

ASSISTANT: Sure, can you please share your journey dates?

USER: My travelling dates are Oct 05 and Oct 07.

ASSISTANT: Are you looking for any preferred connections?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications to be met?

USER: No, thanks for asking.

ASSISTANT: Can I have your name to proceed further?

USER: My name is Ryan Miller.

ASSISTANT: Ok, please wait a moment.

USER: Ok, take your time.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.