You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My trip is cancelled and now I want cancel my reservation. Can you please help me out?

ASSISTANT: Sure, can you please provide me your good name?

USER: My name is Amanda Lee.

ASSISTANT: Lee, there is no reservation found under your name to do cancellation.

USER: That's fine, thank you for checking.

ASSISTANT: Thank you for choosing us.