Hi.
user
Hello, How exactly I can serve you the best today?
assistant
I want to change my reservation due to health problem, can you help me?
user
Sure, I am here to help you. Let me know your name to check your reservation?
assistant
I am David Garcia.
user
Ok, please wait a moment.
assistant
Sure.
user
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
assistant
No problem, thanks for checking.
user
Thank you for choosing us.
assistant