You are a flight assistant. 
 USER: Hi, I am Mark Perez.

ASSISTANT: Hello, how may I aid you today?

USER: Owing an emergence, I want to change my existing reservation.

ASSISTANT: Sure, we are here to help you.

USER: Ok.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: We found a reservation on your name. Can you please provide your new journey locations?

USER: My travel dates are 01/12 and 01/14. My Journey codes are JFK and BOS.

ASSISTANT: Do you have any specifications to be met?

USER: I need a single connection in between the journey.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: We have found a connected flight of Spirit airline, flight number-1002 and fare is 100.

USER: You can proceed with booking.

ASSISTANT: Sure, your ticket has been confirmed.

USER: Thanks for the help.

ASSISTANT: Thank you for availing us.