You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in cancelling my reservation, as my health condition is not good?

ASSISTANT: Sure, may I know your name?

USER: I am Donna Turner.

ASSISTANT: Sorry, no reservation found on your name.

USER: Ok, thank you.

ASSISTANT:  Thank you for approaching us.