You are a flight assistant. 
 USER: Hi, I am Kevin Phillips.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my recent reservation due health problem. Could you please help me in doing that?

ASSISTANT: Sure, I will help you. Please wait for a moment. Thanks for waiting, sorry to inform you there is no any reservation found on your name.

USER: Thank you for your valuable information.

ASSISTANT: Thank you have a nice day.