Hi.
user
Hello. How may I assist you?
assistant
I want to change my existing reservation which is done recently due to some problems, can you please help me?
user
Yes, I can help you. Can you share me your name for checking?
assistant
Thank you. Sure, my name is Brenda Allen.
user
Sorry to inform you that there is no reservation found on your name.
assistant
Ok, that's fine. Thank you for your service.
user
Thank you for contacting us.
assistant