You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you aid me to book a flight ticket from BOS to ATL?

ASSISTANT: Sure, we are happy to help you. May I know your travelling dates?

USER: My trip dates are Apr 25 and Apr 27 respectively.

ASSISTANT: Do you have any other specifications?

USER: I prefer for connecting flight.

ASSISTANT: Can I have your good name?

USER: Karen Young here.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: Thank you.

ASSISTANT: Thank you for choosing us.