You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: My name is Sarah Phillips, I just want to cancel my reservation due to cancel of business meeting.

ASSISTANT: Sure, I am happy to help you. Please wait for a while.

USER: Sure.

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

USER: No problem, thank you for your service.

ASSISTANT: Thanks for choosing us.