Hello.
user
Hello.
assistant
My name is Catherine Mitchell.
user
How can I help you?
assistant
I want to change my existing reservation because my exam was postponed, can you please help me with that?
user
Please wait a moment. Let me check.
assistant
Ok, take your time.
user
Sorry, there is no reservation found with your name.
assistant
That's ok. Thank you for checking.
user
Thank you for reaching us.
assistant
Welcome.
user