You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me to book a flight from JFK to BOS?

ASSISTANT: Please provide your journey dates.

USER: My travel dates are Sept 01 to 03.

ASSISTANT: Do you need any connection limit?

USER: I prefer direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Robert Miller.

ASSISTANT: There are no flights available on your routes.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.