You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please help me to cancel my reservation due to some health issues?

ASSISTANT: Sure, may I know your name?

USER: Sure, my name is Anna Scott.

ASSISTANT: Please wait a moment let me check the reservation list.

USER: Sure.

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

USER: Not a problem, thank you.

ASSISTANT: Thank you so much for choosing us.