Hello.
user
Hello. How can I help you?
assistant
Actually, I want to change my existing reservation due to some problems, can you please help me in this condition?
user
Yes, I can help you.
assistant
Thank you.
user
Can I know your name for checking?
assistant
Sure, my name is Dorothy Allen.
user
Sorry to inform you that there is no reservation found on your name.
assistant
Ok, no problem.
user
Thank you for contacting us.
assistant
Thank you for your service.
user