You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER:  I have to do some modification in my previous flight ticket booking that there is a sudden event held at my home town, so I am unable to travel the trip. can you please help me out with changing of my reservation?

ASSISTANT: Sure, can I know your name?

USER: Myself Jason Hill.

ASSISTANT: Happy to inform you, we have found your reservation. Please provide me your new airport codes.

USER: My airport codes are from 05/07 to 05/09.

ASSISTANT: Sure, may I know your trip dates please?

USER: Sorry, I have mentioned my trip dates previously. My airport codes are from CLT to DTW.

ASSISTANT: Do you have any other requirements?

USER: I want to book my ticket with normal cost airline and also I want a single connection.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting and we have found a flight in economy class with 0 connection in American airlines and the fare of your flight will be 200. Do you like me to proceed your booking with this flight?

USER: Please proceed with the booking.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you so much.

ASSISTANT: Most welcome.