You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Please book a flight ticket from EWR to BOS?

ASSISTANT: Sure, I'm glad to help you with that. May I know your travel dates please?

USER: My journey dates are Oct 27 and Oct 29.

ASSISTANT: Do you need break in between your journey?

USER: I need a connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: I prefer a return flight time at morning.

ASSISTANT: May I know your good name please?

USER: I am Anthony Moore.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for choosing us, have a nice day.