You are a flight assistant. 
 USER: Hello, myself Brian Nelson.

ASSISTANT: Hello, how may I assist you?

USER: Due to changes in my plan I need you to modify my recent reservation.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please wait a moment, I will check the status of your reservation.

USER: Sure.

ASSISTANT: I have found your reservation, please provide your nearest airport codes.

USER: EWR and DFW are my nearest source and destination airport codes.

ASSISTANT: May I know your planned travel dates please?

USER: September 16 and 18 are my planned travel dates.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any specifications?

USER: I wish to depart in the evening.

ASSISTANT: I found an economy class in JetBlue airlines with fare 200 and it is a connecting flight. Can I book your ticket?

USER: Please book the ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1008.

USER: Thank you very much for the help.

ASSISTANT: Thank you for reaching us.