You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you please book a flight ticket from OAK to EWR?

ASSISTANT: May I know your travelling dates?

USER: My trip dates are 05/17 and 05/19.

ASSISTANT: Can I know your connection limit?

USER: I need a direct flight to travel.

ASSISTANT: Do you have any other preference?

USER: No, thanks for asking.

ASSISTANT: Sorry, no flights available on your route.

USER: That's ok, thank you for your information.

ASSISTANT: May I know your name please?

USER: Gregory Jones here.

ASSISTANT: Thank you for reaching us.