Hello.
Hello. Can you please let me know how may I aid you?
Thank you for asking. I need your assistance in changing my recent reservation.
Sure, I will help  you to change the ticket details. Can you please tell me your good name to check the ticket status?
Sure, my name is Samantha Davis.
Ok, can you please allow me sometime?
For sure, I will allow  you.
I am really sorry to inform you that, there is no active reservation found with your name to change the details.
Thant' ok. Thanks for your time.
You are welcome. Thank you for choosing us.