You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I already have an reservation to attend  meeting, due to some problems meeting place has been changed. So, I need a few changes in my reservation.

ASSISTANT: Sure, I will do that for you. Can you please provide your name to check your previous reservation status?

USER: Reservation has been with the name of Anthony Davis.

ASSISTANT: Ok, please be on hold to check.

USER: Sure.

ASSISTANT: Yes, I have found your reservation. Please provide what are the modifications do you want to change?

USER: Fine. My new journey dates are 06/02 and 06/04.

ASSISTANT: Ok, can you please provide your origin and destination airport codes for booking?

USER: Airport codes are JFK and DCA.

ASSISTANT: Please wait a moment to check the flights availability in your route.

USER: Ok, take your time.

ASSISTANT: Yes, I have found a connecting flight in your journey, it's having with a fare of 100 provided by JetBlue airlines. Shall I proceed with this?

USER: Ok, confirm it.

ASSISTANT: Ok, your ticket has been booked successfully in flight number 1022.

USER: Thank you for your help in this.

ASSISTANT: Thank you for reaching us, have a great journey.