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