You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Deborah Clark. I am planning to do Christmas shopping in New York, could you help me in booking a flight ticket within a price limit of 1000.

ASSISTANT: Sure, we are happy to help you. May I know your depart date and return date?

USER: My departure day is 12/21, return day is 12/23.

ASSISTANT: Ok, do you need any halt in between in your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Ok, Kindly mention your journey airport codes.

USER: My source and destination airport codes are PA - PHL, NY - EWR.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your patience, There is a flight found in 1015 AA airline with a fare of 100. Shall I proceed for booking?

USER: You can proceed to booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.