Hello.
user
Hello. How can I help you?
assistant
I want to change my reservation, can you help me with that?
user
Sure, I will help you to change your reservation.
assistant
Thank you.
user
Please share me your name.
assistant
Sure, Mark Nelson here.
user
Sorry, no reservation found on your name to change your reservation.
assistant
No problem, thank you for the information.
user
Welcome, have a nice day.
assistant