Hi.
user
Hello. How may I assist you?
assistant
 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?
user
Sure, I am here to help you with your concern. May I know your name please to check the status of your reservation?
assistant
Janet Turner here.
user
Please wait for a minute.
assistant
Ok.
user
Janet Turner, no reservation has been found on your name in our records.
assistant
That's ok, thank you for your help.
user
Thank you for choosing us.
assistant