Hello, I am Robert Lopez.
user
Hello, how can I assist you?
assistant
As I am a doctor having an emergency work in hospital.So, can you please change my existing reservation?
user
Please wait for a while, I will check and revert you.
assistant
Sure.
user
Sorry there is no reservation found on your name.
assistant
It's ok thanks for the information.
user
Thank you for reaching us, have a nice day.
assistant