You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Please help me to book a flight ticket from PHL to JFK?

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are Dec 21 to Dec 23.

ASSISTANT: Can I know your name please?

USER: Emily Carter.

ASSISTANT: Here is a connecting flight with fare 300 and 1007 as flight number in American Airline. Shall iI proceed with booking?

USER: Ok, proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.