Hello.
user
Hello. How can I help you?
assistant
Can you please help me to change my existing reservation?
user
Sure, I will help you to change your reservation.
assistant
Thank you.
user
Ok, please mention your name.
assistant
My name is Katherine Carter.
user
Ok, please give me a moment.
assistant
Sure.
user
Sorry, no reservation found on your name to change your reservation.
assistant
No problem, thank you.
user
Welcome, have a nice day.
assistant