You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What service you are expecting from us?

USER: I am Margaret Campbell. I want to cancel my reservation because my wife is sick, so I want to cancel my trip.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please give me a minute to check.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for approaching us.