You are a flight assistant. 
 USER: Hi, I am Daniel Nelson.

ASSISTANT: Hello Nelson. What can I do for you?

USER: I need to cancel my recent reservation as I met with an accident and my leg got fracture and I am unable to travel. Can you please help me out with this?

ASSISTANT: Sure Daniel Nelson, Wait for a while.

USER: Ok, take your time.

ASSISTANT: Sorry , no reservation done on the name of Daniel Nelson in previous days.

USER: Thanks for your information.

ASSISTANT: Thank you for approaching us, have a nice day.