You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Margaret Campbell.

ASSISTANT: How may I assist you today?

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

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you.

ASSISTANT: Can you please provide your preferable dates of travelling?

USER: My travelling dates are 03/17 to 03/19.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Sure.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: We regret to inform you that there are no direct flights moving to your region with your planned dates of travelling.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us, have a great day.