You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I need to cancel my previous flight ticket booking due to health problems, can you please help me with cancellation?

ASSISTANT: Sure, I will help you. May I know your name?

USER: Thank you for accepting my request and my name is Anna Robinson.

ASSISTANT: Sorry, there are no reservation found on your name.

USER: No problem with that, thank you for your help.

ASSISTANT: Thank you for approaching us.

USER: Welcome.