Hi.
user
Hello.
assistant
Raymond Williams here.
user
How may I guide you today?
assistant
 I would like to spend some more days with my family, so please help me in changing my existing reservation.
user
Sure, I will help you with that. Please wait for a while.
assistant
Ok.
user
Hall, I am sorry to say that there is no reservation found.
assistant
That's ok, thank you for your help.
user
Thank you for reaching us.
assistant