You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you today?

USER: Elizabeth Davis here, suddenly I am fallen sick I want to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure, I will help you today. Please wait for some time.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a reservation on your name and it is successfully cancelled.

USER: Thank you.

ASSISTANT: Thank you for approaching us.