Hi.
Hello.
I am Charles Edwards.
How may I be of your help?
I want to change my existing reservation, due to health issue. Can you help me in my changing reservation?
Sure, I'll try to help you with this.
Thank you.
Please wait a moment I will check the reservation status.
Sure, I will wait for your response.
Thank you for waiting, I have checked in reservation list to change your ticket, but could not find any reservation with your name.
Not an issue.
Thank you for approaching us.