You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you aid me to book a flight ticket from PHL to JFK?

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My trip dates are Nov 18 and Nov 20 respectively.

ASSISTANT: Do you need any break in between journey?

USER: I prefer for connecting flight.

ASSISTANT: Are there any other specifications?

USER: I prefer for economy class flight to travel.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: Gregory Green here.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: No issue. Thank you.

ASSISTANT: Thank you for reaching us.