Hi.
user
Hello. How can I help you at this moment?
assistant
I want to change my existing reservation which is done recently due to some health issues, can you please help me?
user
Sure, I will aid you in changing your reservation.
assistant
Thank you for considering my request.
user
May I know your name please.
assistant
Sure, my name is Joshua Green.
user
Sorry to say this, no reservation found on your name in our database.
assistant
Ok, no problem. Thank you for your service.
user
Thank you for reaching us.
assistant