You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you at this minute?

USER: I need to book a flight ticket from PHL to EWR, can you help me in booking a flight ticket?

ASSISTANT: Ok, I am here to help you with that. Can I know your planned trip dates?

USER: Sure, my journey dates are Mar 17 and Mar 19.

ASSISTANT: Do you have any other requirements?

USER: I would prefer depart time at afternoon.

ASSISTANT: May I know your good name?

USER: Sure, Margaret King here.

ASSISTANT: Please wait for a minute.

USER: Please make sure I prefer maximum one connection.

ASSISTANT: Sorry to say that, there are no flights available based on your journey dates.

USER: Ok, no issues.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your assistance.