Hello.
user
Hello, how can I help you?
assistant
Can you please help me to change my existing reservation, due to my plan with my friends has been postponed?
user
Sure, can you please provide me your name to check the reservation?
assistant
Sure, please check my reservation on the name of Dennis Mitchell.
user
Sorry, there is no reservation with your given name.
assistant
Ok, thank you.
user
Thank you for reaching us.
assistant