You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Due to some health issues, I want to cancel my reservation. Can you help me with that?

ASSISTANT: Sure, may I know your name?

USER: Donna Rodriguez here.

ASSISTANT: Please wait for a minute.

USER: Sure.

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

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.