Hello.
user
Hello. How may I aid you?
assistant
My name is Gary Perez and I would like to change my reservation.
user
Sure. Wait for a please moment. I will check your flight reservation status and get back to you.
assistant
Sure.
user
Thanks for your time. I am sorry to say that there is no flight reservation to change it.
assistant
No issue, thank you for the time.
user
Thank you.
assistant