You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me to book a flight on Dec 25th?

ASSISTANT: Sure, can you please mention with your airport codes of journey?

USER: I will fly from JFK to land EWR.

ASSISTANT: May I know your return date please?

USER: I will be heading back on Dec 27th.

ASSISTANT: May I know your class preference please?

USER: I don't have any.

ASSISTANT: Do you have any other specifications please?

USER: I want to depart in the afternoon.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: I found a connecting flight of fare 500 with the UA airline, are you ok with this booking?

USER: Please proceed with the booking.

ASSISTANT: Ok, I have reserved your ticket with the flight number 1019.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a safe flight. May I know your name please?

USER: My name is Brenda Adams.

ASSISTANT: Thank you.

USER: You welcome.