Hello.
user
Hello, how can I help you today?
assistant
I want to change my existing reservation due to some health issues, can you help me with that?
user
Sure, I am here to help you with that.
assistant
Thank you.
user
Can you please tell me your name?
assistant
My name is Benjamin Lee.
user
Sorry, no reservation found on your name to change your reservation.
assistant
No problem, thank you for the checking.
user
Thank you for reaching us.
assistant