You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you help me to book a flight from PHL to EWR?

ASSISTANT: May I know your travelling dates?

USER: I want to fly on 12/25 and 12/27.

ASSISTANT: May I know your class preference?

USER: I prefer economy class.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Could you please tell me your name?

USER: My name is Linda Martinez.

ASSISTANT: Here is a connecting flight with fare 200 and 1004 as flight number. Can I proceed with booking?

USER: Proceed with booking.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank for reaching us.