You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Due to bad weather conditions, I want to change my existing reservation. Can you help me out?

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

USER: Sure, my name is Carol Martin.

ASSISTANT: Ok, wait for a moment please.

USER: Ok.

ASSISTANT: There is a reservation found on your name to change it, can you please provide me with your dates of journey?

USER: Sure, my travelling dates will be 11/05 and 11/07.

ASSISTANT: Ok, may I know your respective airports codes please?

USER: Ok, I want to fly from DCA to IAH.

ASSISTANT: There is a flight with the connecting flight of fare 200 and the airline is naming as JetBlue, are you ok?

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket has been reserved with the flight number 1000.

USER: Thank you.

ASSISTANT: You are welcome, have a happy journey.