You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What service do you expect from us?

USER: I want to cancel my recent reservation, due to some health issue. Can you help me?

ASSISTANT: Sure, I am happy to help you. Can I know your name please?

USER: Thank you. My name is Sharon Martin.

ASSISTANT: Ok, please give me a minute.

USER: Ok, take your own time.

ASSISTANT: Sorry, there is no reservation found with your name in our database to cancel.

USER: That's fine, no problem. Thank you for your help.

ASSISTANT: You are welcome. Thank you for choosing us.