Hello.
user
Hello.
assistant
My name is Christine Collins.
user
How can I assist you today?
assistant
I want to do some changes in my existing reservation. Can you help me for that?
user
Sure, I will help you in modify your ticket.
assistant
Thank you.
user
Sorry, no reservation found on your name to change your reservation.
assistant
That's ok, thank you for checking.
user
Thank you for reaching us.
assistant