Hello.
Hello, How can I assist you today?
I want to change my existing reservation, due to some health issue. Can you help me?
Sure, I will help you with that. Let me know your name to check your reservation?
Thank you. I am Christopher Harris.
Ok, please wait a moment.
Ok, 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.
That's fine, no problem. Thank you for your information.
Thank you for choosing us.