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 you with your concern.
assistant
Ok.
user
May I know your name please to check your reservation status?
assistant
Christopher Jackson here.
user
Please hold on a moment.
assistant
Ok.
user
Christopher Jackson, no reservation has been found on your name in our database.
assistant
That's ok, thank you for your help.
user
Thank you for reaching us.
assistant