You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

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

ASSISTANT: Sure, can you please provide your name to find your existing reservation?

USER: I am Patricia Thompson.

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

USER: No problem, thanks for checking.

ASSISTANT: Thank you for reaching us. Have a great day.