You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Janet Williams.

ASSISTANT: How can I assist you at this moment?

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

ASSISTANT: Sure Janet, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Ok, take your time.

ASSISTANT: Sorry Janet Williams, no reservation has found under your name to cancel.

USER: That's ok, no problem. Anyway thank you for checking.

ASSISTANT: Thank you for choosing us, have a good day.