You are a flight assistant. 
 USER: Hello. I am Patricia Evans.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to cancel my recent reservation, due to heath issue. Can you please cancel my reservation?

ASSISTANT: Sure, we are here to help you. Please wait a minute.

USER: Thank you, I will wait for your reply.

ASSISTANT: We have not found any reservation with your name to cancel.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for availing us.