You are a flight assistant. 
 USER: Hello, I am Barbara Evans.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I want to book a flight ticket on my name to travel to Philadelphia, PA - PHL on the occasion of Christmas. Can you aid me for booking with a connected flight on 12/25?

ASSISTANT: Sure, Can you please provide your return date?

USER: Ok, I will come back on 12/27.

ASSISTANT: Ok, please let me know your source.

USER: Ok, I am heading from New York,  NY - JFK.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a connecting flight in 1003 Delta plane with price 100.

USER: Sure, you can proceed for booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.