You are a flight assistant. 
 USER: Hello. I am Shirley Carter.

ASSISTANT: Hello, how can I help you today?

USER:  Can you cancel my reservation, which is done earlier?

ASSISTANT: Sure, please wait a moment.

USER: Thank you. Sure.

ASSISTANT: Sorry to inform, no reservation found with your name.

USER: No problem, thank you for your information.

ASSISTANT: Thanks for reaching us.