You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Gary Thomas.

ASSISTANT: Ok.

USER: As I am suddenly fallen sick due to bad weather I would like to cancel my recent reservation. Can you please cancel my reservation?

ASSISTANT: Sure, I am perky to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no active reservation on your name.

USER: Ok, thanks for notifying me.

ASSISTANT: Thank you for contacting us.