You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your name for the cancellation process?

USER: I am Larry Wilson.

ASSISTANT: Your reservation found. Are you sure for this cancellation?

USER: Yes.

ASSISTANT: Your cancellation done from our end.

USER: Thank you for your help.

ASSISTANT: Welcome, thank you for reaching us.