You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my recent reservation, as my health is not good to travel. Can you please help me with this?

ASSISTANT: Sure, I will help you out. Please wait a moment.

USER: Sure.

ASSISTANT: May I know your name please?

USER: I am Barbara Moore.

ASSISTANT: Sorry, there are no reservations found on this name.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.