Hello. Jason Lewis here.
user
Hi. How may I help you today?
assistant
I would like to change my existing reservation due to some health issues, can you please help me out with that?
user
Sure,I am here to help you.
assistant
Thank you.
user
 No reservation found with your name on our database.
assistant
Ok, no problem. Thank you for checking out.
user
Thank you for reaching us.
assistant