You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my flight reservation as I am unwell, can you please help me?.

ASSISTANT: Can you please share your good name?

USER: I am William Mitchell.

ASSISTANT: There is no reservation found in our database William Mitchell.

USER: Not an issue, thank you for checking.

ASSISTANT: Thank you.