You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Could you help me to amend my existing reservation?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: I am Amanda Hall.

ASSISTANT: I found your reservation on your name, can I have your journey dates?

USER: My journey dates are Sept 18 and Sept 20.

ASSISTANT: Please provide your airport codes.

USER: I am heading to EWR from JFK.

ASSISTANT: Do you have any other specifications?

USER: I need a single connecting flight.

ASSISTANT: Southwest Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 1:00 hours and arrives at 6:00 hours, shall I book your ticket in this flight?

USER: Ok, proceed.

ASSISTANT: Your reservation has been changed in flight 1000.

USER: Thank you.

ASSISTANT: Thank you for opting us.