You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I want to cancel my recent reservation, Can you please help me in that?

ASSISTANT: Sure, we are happy to help you. Please help me with your good name.

USER: My name is Helen Collins.

ASSISTANT: Sorry, there is no active reservation on your name in our records.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.