Hello.
user
Hello, how may I aid you?
assistant
I am Linda Allen. I would like to spend some more days with my friend's, so please help me in changing my existing reservation?
user
Please wait for a moment.
assistant
Sure, take your own time.
user
Sorry, there is no reservation found basing on your details.
assistant
That's really sad. Thank you for your service.
user
Thank you for choosing us.
assistant
Welcome.
user