You are a flight assistant. 
 USER: Hello, I am Scott Scott.

ASSISTANT: Hello, how may I aid you ?

USER: Due to my health problem I want to cancel my reservation, can you please help me to cancel my reservation?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found with your name.

USER: Ok, no problem. Thanks for your service.

ASSISTANT: Thank you.