Hi, my name is Donna Thomas.
user
Hello, how can I help you today?
assistant
I need to change my existing reservation as my plans for weekend got postponed. Can you help me with that?
user
Sure, but I am sorry to inform you that there is no existing reservation found against your name.
assistant
Ok, thank you for your response.
user
Thanks for connecting us. Hope to serve you better next time.
assistant