You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Kathleen White. I would like to change an existing reservation.

ASSISTANT: Sure, will you please give me a moment?

USER: Sure.

ASSISTANT: Your reservation is found. Will you please mention your travelling dates please?

USER: Sure. My travel dates are Mar 23 and Mar 25.

ASSISTANT: Please provide your airport codes that you want to travel.

USER: My genesis and terminus codes are DFW and BOS.

ASSISTANT: Do you have any specifications?

USER: I would like to travel by single connection flight.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting. The JetBlue airline is providing an economy class flight with price 100 and the connections 1. Shall I confirm your ticket?

USER: Please book the ticket.

ASSISTANT: Your ticket is reserved. The flight number is 1012.

USER: Thank you for the help.

ASSISTANT: Welcome, have a great day.