You are a flight assistant. 
 USER: Hello, my name is Steven Hall.

ASSISTANT: Hello, how may I assist you today?

USER: My meeting was cancelled, so please change my existing reservation.

ASSISTANT: Please wait for moment.

USER: Ok.

ASSISTANT: Reservation found on your name, may I know your new reservation details?

USER: My source and destinations are IL-ORD, PA-PHL.

ASSISTANT: May I know the journey days?

USER: My departure day is 06/19, return day is 06/21.

ASSISTANT: Please wait for a couple of minutes.

USER: Ok.

ASSISTANT: Thank you for waiting. we found a flight 1027 in Jet Blue and price is 100 with single connection.

USER: Ok, you can proceed to booking.

ASSISTANT: Thank you for availing with us,your ticket has been confirmed.

USER: Thanks for your service.